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The topography of an area may refer to the landforms and features themselves, or a description or depiction in maps. Topography is a field of geoscience and planetary science and is concerned with local detail in general, including not only relief, but also natural, artificial, and cultural features such as roads, land boundaries, and buildings ...
Interfluve – Land between two converging, or confluent, rivers; Inverted relief – Landscape features that have reversed their elevation relative to other features; Island – Piece of subcontinental land surrounded by water; Islet – Very small island; Isthmus – Narrow strip of land connecting two larger land areas
The topographic elevation of a summit measures the height of the summit above a geodetic sea level. [1] [2] The topographic prominence of a summit is a measure of how high the summit rises above its surroundings. [3] [2] The topographic isolation (or radius of dominance) of a summit measures how far the summit lies from its nearest point of ...
The term "United States," when used in the geographic sense, refers to the contiguous United States (sometimes referred to as the Lower 48, including the District of Columbia not as a state), Alaska, Hawaii, the five insular territories of Puerto Rico, Northern Mariana Islands, U.S. Virgin Islands, Guam, American Samoa, and minor outlying possessions. [1]
The National Map is part of the USGS National Geospatial Program. [3] The geographic information available includes orthoimagery (aerial photographs), elevation, geographic names, hydrography, boundaries, transportation, structures and land cover. The National Map is accessible via the Web, as products and services, and as downloadable data ...
Differences in roughness (topographic relief) result from a variety of processes acting on the underlying rock. The plate tectonic history of a region strongly influences the rock type and structure exposed at the surface, but differing rates of erosion that accompany changing climates can also have profound impacts on the land. [1]
Topographic maps are also commonly called contour maps or topo maps. In the United States, where the primary national series is organized by a strict 7.5-minute grid, they are often called or quads or quadrangles. Topographic maps conventionally show topography, or land contours, by means of contour lines.
The tool is called Native-Land, and it’s run by Canadian developer Victor G. Temprano. He also runs the company Mapster, which helps create maps for a wide variety of uses.