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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 Maps
The Historical Topographic Map Collection (HTMC) is the set...
- Topographic Mapping
Topographic Mapping and the USGS. A longstanding goal of the...
- Topographic Maps
Jan 26, 2024 · Here are just a few details a topographic map may bring to light: Elevation changes, which are shown through contour lines. Streams, rivers, lakes, and various other important bodies of water. Mountains, forests, tree cover, and other large natural features. Trails, roads, railroads, and other major transportation infrastructure.
The Historical Topographic Map Collection (HTMC) is the set of scanned images of USGS topographic quadrangle maps originally published as paper documents in the period 1884-2006. Visit Historical Topographic Maps - Preserving the Past for more information. 2. US Topo is the current USGS topographic map series for the Nation.
This is because when contours are close together, it means that the slope is steeper. For a quick definition, a contour line joins points of equal and constant values. For example, contours on an elevation have constant heights that are the same on each line in a topographic map.
Aug 18, 2022 · Topographic Contours. Many maps of land areas have series of curved lines, called contours, that represent the topography of the area. Such a map is called a topographic map. A contour is a horizontal curve that’s the locus of all points on the map with the same elevation (Figure 3-35).
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 ...
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What is a contour on a topographic map?
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What are contour lines on a US Topo quadrangle?
What is a USGS topographic map?
Why are topographic maps a signature product of the USGS?
What distinguishes topographic maps from other types of maps?
The Historical Topographic Map Collection (HTMC) is a set of scanned images of USGS topographic quadrangle maps originally published as paper documents from 1884 to 2006. They come in smaller map scales (e.g., 1:250,000 or 1:62,500). Therefore, each map sheet covers a larger area than a US Topo quadrangle.
