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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.
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A topographic map of Stowe, Vermont with contour lines This false-color satellite image illustrates topography of the urban core of the New York metropolitan area, with Manhattan at its center. Topography is the study of the forms and features of land surfaces .
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TopoQuest is a free web mapping service built on open source software that provides internet-based topographic map for most of the United States.. The site is one of three internet services used by Wikipedia for providing topographic maps.
An enlargeable relief map of Chile. The following outline is provided as an overview of and topical guide to Chile: Chile – country in South America occupying a long, narrow strip of land between the Andes mountains to the east and the Pacific Ocean to the west. Prior to the arrival of the Spanish in the 16th century, northern and central ...
The state flag is officially described by law as: a rectangle that: (1) has a width to length ratio of two to three; and (2) contains: (A) one blue vertical stripe that has a width equal to one-third the length of the flag; (B) two equal horizontal stripes, the upper stripe white, the lower stripe red, each having a length equal to two-thirds the length of the flag; and (C) one white, regular ...
The continent's topography is often likened to a huge bowl owing to its flat interior almost ringed by tall mountains. With the exception of narrow coastal plains on the Pacific and Atlantic oceans, there are three main topographic features: the Andes, a central lowland, and the extensive Brazilian and Guiana Highlands in the east.