Search results
Feb 5, 2022 · Contour lines show stream direction with the V-shaped lines through which you see the streams and rivers run through on a topo map. Because water flows downhill, the V-shape always points in the opposite direction that the water is flowing. This is called the “Rule of V’s”. Contour Lines vs. Relief.
contour lines, called the contour interval, is selected to best show the general shape of the terrain. A map of a relatively fl at area may have a contour interval of 10 feet or less. Maps in mountainous areas may have contour intervals of 100 feet or more. The contour interval is printed in the margin of each U.S. Geological Survey (USGS) map.
A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes. [4] The contour interval of a contour map is the difference in elevation between successive contour lines.
A USGS topographic map is usually named for the most prominent feature within the bounds of the map, frequently a community. Most topographic maps are named for the most centrally located, well-known, and/or largest community labeled on the map. If the community for which the map should be named falls on two or more maps, a directional term ...
Topographic Mapping and the USGS. A longstanding goal of the USGS has been to provide complete, large-scale topographic map coverage of the United States. The result is a series of more than 54,000 maps that cover in detail the entire area of the 48 contiguous States and Hawaii. Produced at a scale of 1:24,000 (some metric maps are produced at ...
Nov 14, 2024 · From the contour map, a profile can be drawn of the terrain. Example 2 - Draw a profile showing the elevations of the contours. Note: The intervals are increasing, therefore, the contours indicate a hill. The peak is normally considered to be located at half the interval distance. Widely separated contour lines indicate a gentle slope. Contour ...
People also ask
What is a contour map example?
What is a map with contour lines on it called?
What is a contour on a topographic map?
What are contour lines on a US Topo quadrangle?
How do I know if a map has a contour?
What is the contour interval on a USGS map?
In 1879, the USGS (United States Geological Survey) began to map the topography of the United States. This mapping was done at different levels of detail to support land use specific to a geographic area. USGS produced new map versions of each area at semi-regular time intervals. US Topo maps are the current generation of USGS topographic maps.
