Science Olympiad Road Scholar Practice Exam

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• What inherent problem exists with projection?
• Three-digit numbered interstates with an even first digit generally divert through traffic around major cities. What name is given to such a road?
• What is the rate of change in elevation of a stream or river?
• How is the difficulty with the Mercator Projection solved?
• Which vegetation symbol denotes fields where rice grows?
• A witness corner is typically located how far from the true corner?
• Which description best identifies class 2 buildings?
• Which symbol denotes a small park (county or city)?
• Which symbol is described as three long lines with two dots between?
• Which feature is indicated by the symbol for a campground on a map?
• Contours indicate elevation with respect to what datum/reference?
• Index contour lines are characterized by which feature?
• Which term describes what the map is about or what is charted?
• What is the term for a person who makes maps?
• Contour values are ________________ multiples of the contour interval.
• Rice field is a vegetation symbol category. Which term represents this category?
• Which description matches a boundary monument that is a recoverable mark with no tablet?
• How is a township or range line location shown when it is doubtful?
• Which statement about latitude and longitude is true?
• Which symbol is used to represent a light-duty road (improved surface)?
• Which term best fits a watercourse that does not flow year-round?
• If a map was updated with aerial photographs, this is described as being
• Secondary highways are depicted as what?
• Which term describes lines that show zero magnetic variation, aligning with true north?
• Acres in a PLSS section
• Distinguish between a fresh-water lake and a salt-water lake with respect to a contour plot.
• Mean sea level is the reference datum used for which of the following features?
• Which symbol denotes a telephone line on maps?
• Which item is listed as a Mines and Caves symbol?
• In the Sector Reference System, a USGS 1:24,000 scale topographic map is divided into many parts (sectors). How many parts?
• The quadrangle may be named after a prominent city or feature if which condition is met?
• The foreshore flat is part of which symbol family on maps?
• Contour values are _____________ multiples of the contour interval.
• Depths on a depth curve are measured from which reference?
• Which boundary type is typically indicated by a normal weighted font and a long line with two short dashes on maps?
• Which line would you consult to identify lines of equal water depth on a map?
• What is the scale for a 7.5 minute quadrangle?
• The word "School" appears in the map legend as a label for which features?
• Do odd-numbered, 2-digit highways run north-south or east-west?
• Do contours on opposite sides of a stream have the same value or different values?
• Which land area is densely covered with trees?
• What is the map (usually appears in the corner of another map) that shows an enhanced view of a part of the bigger map called?
• Which geographic or mapping term best matches the description: a plane to which depth measurements are referred; used in depth curves?
• Where would you find road classifications on the map?
• What is a depression in topographic terms?
• Depression contours on a map are shown by which feature?
• Which statement is true about foreshore as a coastal feature?
• Which geographic feature is the highest point on a mountain?
• Which symbol denotes an underground oil or gas pipeline?
• Which term describes a railroad with a standard gauge and multiple tracks?
• Which symbol represents fence or field lines in land surveying?
• What term describes a map feature that is formed by gradicule tick marks and is defined by 2.5 minute tick marks?
• What are mill tailings?
• A meander corner is the intersection of a township, range, or section line with what feature?
• Which term denotes a road with opposing traffic flow or a median strip?
• The sector reference system comprises how many main quadrants and subquadrants per main quadrant?
• Which term appears as a standalone label for a place of worship on the map legend?
• Which term is associated with a road feature that could indicate construction on a map?
• Submerged, wooded marsh or swamp would be categorized under which symbol type?
• Intermittent ponds or streams are depicted on maps by which features?
• Which feature is indicated by a cemetery symbol on a topo map?
• On a topographic map, the built-up area symbol is used to indicate which type of land?
• Which category would you consult for symbols of submerged areas and bogs?
• Cut and fill contours are characterized by what display?
• Which term refers to irregular topography described as an Intricate surface area?
• The Mercator projection is also known by what other name?
• Where is the title block typically found on a map?
• Which vegetation symbol is used for grapevines grown in evenly spaced rows?
• Which statement best describes beltways in relation to major cities?
• Describe a vertical control point, third order or better, recoverable mark, no tablet.
• The label "Disappearing Stream" corresponds to which water feature?
• Which directions are Northeast, Southeast, Northwest, and Southwest?
• Which configuration is described as 'Standard gauge multiple track'?
• Horizontal control station marks indicate what information is determined?
• Land grant or mining claim locations are represented by which symbol?
• A road that may have a median strip is described by which term?
• Which term refers to a railroad that is described as 'Abandoned' in the material?
• Contour lines on a topographic map are typically what color and what do they connect?
• What does the symbol Exposed wreck indicate on coastal features maps?
• What is a tablet in this context?
• Secondary highway includes which types of routes?
• Land subject to inundation belongs to which symbol group?
• USGS stands for which organization?
• Gravel beach; glacial mine is represented by which symbol group?
• How do the calculation and expression of a stream gradient compare with those of a slope gradient?
• A found corner is defined as what?
• Which map projection property ensures that areas on the map are proportional to actual areas on Earth?
• What is one half of a globe called?
• The Location Doubtful designation appears most often in areas surveyed by which entities?
• Which lines run parallel to the equator?
• Which term describes a road feature that passes over another road?
• Which term corresponds to a highway or road under construction?
• Contour patterns indicate which kinds of topographical features?
• Supplementary contours are shown where and how?
• The term "Perennial Stream" belongs to which symbol category?
• Which vegetation symbol includes groves of citrus and nut trees?
• Which property is described by the definition of conformal?
• What are 2 examples of types of features/information can city maps show that state maps can't?
• The Northern Hemisphere is located north of which imaginary circle?
• Depth curves should not be confused with underwater contours because they are measured from different references.
• What defines the foreshore flat in coastal mapping?
• Even-numbered two-digit highways generally run in which direction?
• What best describes a rhumb line on a map?
• Which item is a Submerged Areas and Bogs Symbol?
• What term describes the system of lines used to determine coordinates on Earth’s surface?
• Which boundary type might indicate federally administered parks, reservations, or monuments on maps?
• Which category would include both levee and dunes?
• A 7.5 minute quadrangle typically covers approximately how many square miles?
• Which imaginary line divides the Earth into eastern and western hemispheres at 0 degrees longitude?
• Longitude lines measure degrees east-west and are marked in which orientation?
• Light-duty roads are characterized by which traffic pattern?
• Survey Control Marks are also referred to as what?
• Which term describes a railroad located in a street context?
• Shoreline; Mean high water line is part of which symbol family?
• Which term can refer to a coordinate system, a frame of reference, or a reference frame?
• Spot elevations are often used to designate what specific feature on a hill or mountain?
• What does the Series refer to on a quadrangle map?
• Bearings designate direction by what format?
• What symbol represents trails on the map?
• When crossing a stream valley from one side to the other, how are contour values encountered?
• What is the map scale of the USGS topographic map used in the Sector Reference System?
• What does the term 'Doubtful' indicate regarding location accuracy on maps?
• In an equidistant projection, which property is true?
• Which azimuth value represents true South on a map?
• How are distances computed, in general? (That is, as the crow flies or straight line distance)
• What is the term for a thematic map in which areas are shaded or patterned in proportion to a statistical variable such as population density?
• Which of the following features can city maps show that state maps typically cannot? (Choose the best example)
• Cuts and fills on a map describe what about a roadway project?
• What information is shown in the legend of a topographic map?
• The phrase '2.5' by 2.5'' in this context refers to the size of a what?
• On USGA-USDA Forest Service Single-Edition Quadrangle maps, how is Channel represented in Bathymetric Features?
• May contours intersect?
• What are two kinds of topographical features indicated by contour patterns?
• How many seconds make up one minute?
• Which organization is associated with standard topographic data in the United States?
• What is the Principal Point in the Provisional Edition maps context?
• The National Geodetic Vertical Datum of 1929 refers to a sea level baseline measured in which year?
• In an equal-area map projection, which feature is proportional to the corresponding area on Earth?
• What is an azimuth?
• The Buildings and Related Features Symbols include which of the following items?
• On a standard Mercator map, a line of constant bearing on the Earth appears as what?
• What is a depth curve?
• Which features are represented by the Rivers, Lakes and Canals Symbols category?
• Which term describes a movable bridge that can be raised to allow boat traffic?
• Trail classification includes which types?
• What hazard does the symbol Rock bare or awash indicate on navigational charts?
• In the Buildings and Related Features Symbols, which position corresponds to School and Church?
• Which term describes a bridge that can be opened for water traffic?
• Which line divides the Earth into eastern and western hemispheres?
• Which bathymetric feature is shown only on Provisional-Edition maps?
• What is the Public Land Survey System also referred to as?
• What is the area of a single PLSS section?
• What is the term for the method of representing the curved Earth on a flat map?
• How are class 2 buildings depicted on maps?
• What is the primary method used to show distances along Interstate Freeways?
• The Public Land Survey System is also referred to as the Rectangular Survey System. Which option correctly names this alias?
• Which configuration is described as 'Narrow gauge single track'?
• What is the primary purpose of a depth curve on a hydrographic map?
• A course of constant azimuth/bearing on the Earth is a spiral. What is it on a standard Mercator map?
• What map feature shows cardinal and intermediate directions?
• Index contour lines on a map are typically what, compared to other contours?
• Which boundary symbol uses bold weighted font and a long line followed by two short dashes?
• Do contours on opposite sides of a stream have the same value or different values? Why?
• How is a perennial pond or stream depicted on maps?
• What term refers to a sphere that represents Earth's entire surface?
• How would an airline pilot use azimuths?
• In the material, which phrase is used to denote railroads where two or more lines of track are built on the same bank of earth?
• Supplementary contour lines are typically what style and placed where?
• Vertical control station marks indicate what information is determined?
• Do storm waves extend beyond the foreshore according to the definition provided?
• Cuts and fills on a map indicate what about terrain or construction?
• What is the primary method of distance along U.S. Federal Highways?
• What symbol denotes a U.S. location or mineral monument?
• What is the prime meridian?
• Which term describes areas that share a common border?
• Numbers for spot elevations that have not been accurately surveyed are printed in which color?
• What does a benchmark indicate on a map?
• How is the scale represented on 7.5-minute maps?
• Which term describes a water body that contains water throughout the year except during periods of severe drought?
• Which term describes a water feature that can vanish seasonally?
• What does it mean when a vertical control point has Benchmark coincident with a found section corner?
• How many minutes make up one degree?
• Magnetic declination measures the degrees between which two reference directions?
• Which term describes a railroad feature under construction?
• On a topographic map, the built-up area symbol is used to indicate which type of land?
• What is the azimuth for East?
• Along with the quadrangle name, which information also appears in the upper right corner?
• Where is the map scale typically shown on a 7.5-minute map?
• What is a contour interval?
• Which geographic feature is a low point between mountains, often used as a pass?
• Which azimuth value represents true East on a map?
• Which map type does not show the shape and elevation of the land?
• The word "Church" appears in the map legend as a label for which features?
• What does a profile plot indicate?
• On quad maps, horizontal control station marks are depicted as which symbol?
• Which map feature uses lines to show relief by varying thickness, indicating slopes?
• Which term describes a road feature that bridges a gap and carries traffic over an obstacle?
• Unimproved roads are passable in which weather conditions?
• What is the purpose of national map accuracy standards on a map?
• Shoreline and mean high water line belong to which symbol group?
• What is a quadrangle?
• What does the phrase 'Railroads in juxtaposition' describe?
• Which term describes a passageway that allows travel underground?
• What term describes the problem of map projections distorting shape and size?
• How are other roads depicted?
• Which statement best describes the primary highway category?
• Do contour U-turns point upstream or downstream?
• Under what condition are supplementary contour lines added to a map?
• Which term describes a swampy, waterlogged area?
• How are sectors on a standard map arranged?
• What is the purpose of supplementary contour lines on a topo map?
• The terms 'Found section corner' and 'Found closing corner' illustrate what category of symbols?
• Which boundary type denotes incorporated city or municipal boundaries on maps?
• What do control data marks identify on maps?
• Why is the apparent edge of vegetation considered an approximate line?
• Which description corresponds to a vertical control point that is third order or better and has a tablet?
• Do even-numbered, 2-digit highways run north-south or east-west?
• What do hachures on a contour indicate?
• What pattern do contour lines form to indicate a ridge?
• The deviation of a reading from true North (geographic North) is called
• Secondary highways are intended to connect what?
• What is the primary purpose of contour lines on a map?
• In the Public Land Survey System, what are the dimensions and area of a township?
• What pattern is formed where lines of latitude and longitude cross on a map?
• Which symbol denotes a Forest Service administrative area?
• The color of intermediate contour lines on a standard topographic map is which color?
• Which category includes symbols for submerged areas and bogs?
• What is the rise over run, the measurement of the change in elevation over a distance?
• What symbol on a USGS map typically indicates a spot elevation?
• What are objects placed to mark key survey points on the Earth's surface, also referred to as benchmarks?
• What does Township or range line refer to?
• In the Public Land Survey System, what are the dimensions and area of a section?
• In marine shoreline mapping, what does the Approximate mean high water line indicate?
• In the Public Land Survey System, the dimensions and area of a township?
• Large falls; large rapids correspond to which symbol category in the map legend?
• Which of the following best describes when a map inset is used?
• What does 'Indefinite or unsurveyed' indicate on Marine Shorelines Symbols?
• What does 'Gravel, sand, clay or borrow pit' indicate within the Mines and Caves symbols?
• Which contour lines are typically labeled with elevation values?
• Which map projection is commonly used for classroom demonstrations because it balances size and shape with poles distorted?
• A sector on a map is formed by gradicule tick marks, each tick mark measuring how many minutes in size?
• In what two ways are roads classified on a highway map?
• Which landform is a broad low area between hills or mountains?
• Sandy area; dunes; shifting sand is shown under which symbol group?
• Which term refers to a water body that contains water only part of the year?
• On USGS topographic maps, where is the shoreline set?
• Which configuration is described as 'Standard gauge single track; with Station' ?
• What are the dimensions of a sector in this system?
• Latitude lines measure degrees north-south and are marked how on a map?
• In angular measurement, which unit is defined as 60 of these make up a minute?
• The symbol "Roundhouse and Turntable" is associated with which feature?
• What is a sounding datum in surveying and mapping terms?
• Which item is not described as a primary method of indicating distance on the highway maps in the material?
• Which projection is used to address polar distortion in Mercator maps?
• Which landform forms a saddle, a low area between mountains?
• Wooded marsh or swamp belongs to which symbol group?
• What is the distance of a point above sea level?
• Sector dimensions are expressed using what unit?
• What remains on abandoned railroads according to the material?
• Which symbol denotes an aboveground oil or gas pipeline?
• How many sections make up a PLSS township?
• How does an airline pilot make use of azimuths
• Which symbol would you consult to identify a mine-related waste disposal site?
• Which organization is commonly associated with producing and maintaining topographic maps in the United States?
• How many acres are in a PLSS section?
• What term describes the distance east or west of the Prime Meridian, measured in degrees, with lines running from north to south?
• Levee is categorized under which symbol group?
• Which vegetation symbol represents areas with dense mangroves near coastlines?
• UTM stands for which system?
• Which depiction corresponds to other roads?
• Which land cover term describes land that is not forested?
• Where, in general, are state capitals located?
• If multiple route markers appear on the same road symbol, what does this indicate?
• The discarded materials from ore treatment processes, often disposed of in tailings ponds, correspond to which map feature?
• If contour lines coalesce, the terrain is typically...
• Which projection shows accurate size and shape of continents and is good for classroom use, with distortions near the poles?
• Which statement is true about planimetric maps?
• The symbol "Railroad - Roundhouse and Turntable" belongs to which symbol category?
• What is the imaginary line around the Earth that runs parallel to the equator and is measured in degrees called?
• Three-digit interstates with an even first digit are commonly named what when they bypass traffic around major cities?
• In the Public Land Survey System, a section measures 1 mile by 1 mile. What is its area in acres?
• On Topographic Bathymetric maps, how is a Sunken rock depicted?
• Which term denotes a gauge distance smaller than the standard gauge?
• Tailings pond would be represented by which symbol group?
• Which vegetation symbol describes arid regions with low-growing vegetation such as cactus or sagebrush?
• What is the azimuth for West?
• According to the material, intermittent means what?
• Woodlands are described as areas with tree cover or brush that is potential tree cover, at least 6 feet tall and dense enough to afford cover for troops. Which term corresponds to this vegetation category?
• What is the term for the small crosshair mark that divides the map into nine sectors?
• Which line on a map is defined as having a constant direction relative to all meridians?
• Section line refers to which of the following features?
• What color and style represent major highways?
• What is the system called that transfers locations from Earth's surface to a flat map?
• Contour cross-drainage lines form U-turns. What are these U-turns called?
• A 7.5 minute quadrangle covers land at a scale of 1:24000 and spans 7.5 minutes of arc in each direction. Approximately how many square miles does it cover?
• To which family does the Mercator projection belong?
• Why is mean sea level used?
• What information does an index contour line carry?
• According to the rule of the V's, the point of the V points which direction?
• In Mines and Caves symbols, what is a 'Quarry'?
• Contour values are whole-number multiples of the contour interval?
• The deviation of magnetic North from true North is called what?
• In topographic maps, the light brown lines between index contours are called what?
• What does a topographic map show?
• Spot elevation on topo maps is characterized as which of the following?
• What does it mean when a horizontal control point is coincident with a section corner?
• Forest Service range district falls under which symbol category?
• Submerged marsh or swamp would be depicted by which symbol group?
• Which type of area is represented by boundary symbols including state forests, parks, reservations, or monuments?
• Which map element is a measuring bar used to determine distance on a map?
• What does Unmonumented (Provisional Edition maps only) indicate?
• Sink holes are associated with which type of topography?
• Latitude is measured north or south of what reference?
• How can stream flow direction be determined on a contour map?
• Which of the following is an example of a recoverable mark?
• A witness corner stands in under which circumstance?
• A horizontal control point, third order or better, with a permanent benchmark that includes elevation would be most useful for what?
• What does the term 'Apparent (edge of vegetation)' describe?
• A planting of evenly spaced trees or tall bushes that bear fruit or nuts; groves include citrus and nut trees. Which vegetation symbol is this?
• Which boundary symbol uses a short dash between two long lines?
• What feature is indicated by a symbol for a well, windmill, or wind generator on a map?
• The symbol labeled 'gravel pit' on Mines and Caves maps represents which feature?
• On a thematic map, the placement of shading or patterns to represent data values is known as
• Which symbol is used on maps to represent class 1 buildings?
• Which azimuth value represents true North on a map?
• Which feature is used to compute distances on a map?
• The location on a map where data are measured is called the
• The symbol for Forest Service administrative area is used on which map edition?
• Which statement is true about Marine Shorelines Symbols vs Mines and Caves symbols?
• Which vegetation symbol corresponds to arid regions with low-growing or stunted perennial vegetation such as cactus or sagebrush?
• The label "Inhabited Building" refers to which concept on maps?
• Which term describes a river that contains water year-round, except during periods of severe drought?
• What system divides public domain lands in the United States into 6-mile square townships and subdivided into sections?
• In general, where are state capitals located?
• Cartography is the science of mapping. Which option best defines cartography?
• What is the primary method of computing distances along state highways?
• An inset map is defined as?
• Which description matches a boundary monument with a tablet?
• Which category includes symbols such as Quarry, Gravel pit, Mine shaft, and Mill tailings?
• What useful plot can be derived from a contour map?
• Water surface elevations for large lakes and reservoirs use which representation?
• The mapping system abbreviated as UTM is a grid-based coordinate system used for mapping. Which acronym refers to this system?
• What is typical about how fixed reference points are marked?
• What is the purpose of neat lines on a quadrangle map?
• Which symbol is used to represent an unimproved road (unsurfaced)?
• A depression on a topographic map is best described as what kind of pattern?
• Define conformal.
• Which boundary symbol uses normal weighted font and a long line followed by two short dashes?
• In coastal features, what does the symbol for Rock or coral reef denote?
• Which term denotes a railroad that is abandoned but remains in place?
• What is the azimuth for North?
• Neat lines on a quadrangle map refer to:
• Why is the Public Land Survey System (PLSS) used?
• What term describes a crossing over a waterway by a fixed or movable structure?
• A city containing a county government is called what?
• Which lines on a map indicate true north with no magnetic variation?
• What are fixed reference points used for in surveying?
• What does 'Narrow gauge single track' indicate about the distance between rails?
• Which term describes areas that do not touch each other?
• What describes a vertical control point that indicates a spot elevation?
• Which geographic feature is a broad low area between hills or mountains?
• Contour patterns can indicate saddles as a topographical feature. Which option correctly identifies a saddle feature?
• Underwater contours are measured from which reference?
• Which directions are considered cardinal directions?
• What is the purpose of landmark buildings?
• What does it mean if a contour line is dashed on a map?
• In hydrography, what does the term sounding refer to?
• What map feature is also called the key and shows symbols and their meanings?
• If a township is 6 miles by 6 miles, what is its area in square miles?
• In which type of projection are distances true only from the center of projection or along a special set of lines?
• Which direction do 2-digit odd-numbered interstate highways primarily run?
• What is the standard gauge distance between the rails for mainline railroads in the United States?
• Which feature is described as "Small Falls; Small Rapids"?
• In map projections, the term 'conformal' means
• What is the sector reference system?
• Tailings ponds would be represented under which symbol group?
• Which feature is represented by an oval-shaped track field symbol on a map?
• In the legend, the term 'spring' is associated with which feature?
• Contours that coalesce (pile up) on a map indicate which landform?
• Which statement about gradient calculations is true?
• If you want to know the year of the latest revision of the quad, which element would you consult?
• In the Public Land Survey System, what are the dimensions and area of a section?
• Tailings ponds are used to dispose of which materials?
• Which feature is indicated by symbols for paved landing strips, runways, taxiways, or aprons?
• The process by which a 2-dimensional map is derived from a 3-dimensional surface is called what?
• What does the symbol Group of rocks, bare or awash signify on coastal charts?
• Which term describes the vertical distance between index contour lines?
• The unit of measurement for contour elevations depends on the map. Which units might be used?
• Which land cover term describes land densely covered with trees?
• A half-section in the Public Land Survey System equals how many acres?
• What information does the plant imprint note provide?
• The process of showing the Earth's surface on a flat map is called
• Mercator projection is described as preserving true direction and land shapes fairly accurately but distorting which aspects?
• Which lines run from the North Pole to the South Pole?
• Which statement best describes a planimetric map?
• Which map symbol represents state forest, park, reservation, or monument and large county park?
• The point of data collection on a map is called the
• The National Geodetic Vertical Datum of 1929 is a reference for vertical positions relative to what?
• In angular measurement, which unit is defined as the subdivision that makes up a degree?
• Which way do 2-digit even numbered interstate highways run?
• On USGS topo maps, how is the elevation of a bench mark typically shown?
• What are the dimensions of a PLSS section?
• What is a business loop?
• What best describes the term 'Gravel, sand, clay or borrow pit' in the symbol set?
• Which term is defined as a coordinate system where coordinates are distances from perpendicular lines that intersect at the origin?
• Which two items are listed as Land Survey Symbols together in the material?
• Where does the quadrangle name appear on a map?
• What do contour lines on a topographic map represent?
• The 'Secondary highway (hard surface)' description describes which of the following?
• The label "Uninhabited building" refers to which concept on maps?
• Which symbol represents a power transmission line on maps?
• What is information found in the margins of a map?
• Which item is a Surface Features Symbol?
• A planting of grapevines, usually supported and arranged in evenly spaced rows; used in mapping as a vegetation symbol.
• Which statement best describes intermediate contour lines on a topographic map?
• Why can't the poles be shown on a standard Mercator map?
• Which statement best defines a recoverable mark?
• The symbol category for Building is which?
• By what other name is the USGS 1:24,000 scale topo map known?
• The symbol 'Prospect; Mine shaft' corresponds to which feature on Mines and Caves maps?
• Three-digit interstates with an even first digit are typically designed to bypass around major cities. Which option best describes this function?
• In the Public Land Survey System, the dimensions and area of a ¼ - section?
• Which term describes a road with opposing traffic lanes?
• A city containing a state government is called what?
• In map terminology, what are the typical dimensions of a sector as used in the source material?
• Which term describes 'Narrow gauge multiple track'?
• What are degrees of an arc from 0 to 360 used for precise directions?
• Why do contours on opposite sides of a stream have the same values?
• What is a rhumb line best described as?
• Which term is used to describe a river that is not always flowing year-round?
• What feature would be shown by a symbol labeled 'tank' on a map?
• Where does the map inset usually appear?
• Which term describes small waterfalls or rapids in a river?
• What is the azimuth for South?
• If the contour interval is 20 meters, which of the following could be a contour value?
• Which statement correctly distinguishes a perennial water body from an intermittent one?
• A road map is an example of a planimetric map. What does the term planimetric mean?
• Index contour lines are defined as which of the following?
• Relief on a map is indicated by lines that grow thicker with steeper slopes; these are called
• On a topographic map, what is an index contour line?
• Which boundary symbol uses one line between two short dashes?
• Which map indicator provides a fixed and precisely known elevation value?
• Longitude is measured east or west of what reference?
• Which category includes Federal Interstate routes and expressways?
• What is the general term for a structure that carries traffic over an obstacle?
• Which statement best describes what contour lines indicate?
• Intricate surface area is best described as areas that are too irregular to contour except in a very generalized manner, such as lava beds and open strip mines. Which term matches this description?
• What is the primary method of distance along Interstate Freeways?
• Where are distortions primarily located in the Robinson projection?
• Depression contours are identified by which feature?
• What are the two types of quadrangle maps?
• Spot elevations are used to indicate what about a point?
• What color and style are major highways shown on maps?
• Mangrove is described as an area of dense, almost impenetrable growth of tropical maritime trees with aerial roots. Mangrove thrives where the movement of tidewater is minimal. Which vegetation symbol is this?
• Which geographic feature is a long, narrow crest that runs along a mountain range?
• What does a solid blue line with light blue fill indicate on a map?
• The label 'primary road' maps to which type of highway?
• The term "Intermittent River" refers to which type of water body?
• What is bearing?
• What distinguishes an index contour line from other contour lines on a map?
• In the Sector Reference System, a USGS 1:24,000 scale topographic map is divided into how many sectors?
• In the Public Land Survey System, what are the dimensions of a ¼‑section and its area?