The term "contour interval" refers to the vertical distance between contiguous contour lines in terms of elevation. Commonly illustrated on a topographic map, the elevations between contour lines are uniformly spaced alo... More »

The space between contour lines on a topographical map is a contour interval. The contour interval is an even space that represents an increase in elevation. For instance, if the map uses a 20-foot interval, there are co... More »

A contour in geography refers to a line on a contour or topographical map that designates a specific and constant elevation above sea level. Contour lines are used to express a three-dimensional image of terrain on a two... More »

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The space between contour lines on a topographical map is a contour interval. The contour interval is an even space that represents an increase in elevation. For instance, if the map uses a 20-foot interval, there are co... More »

A spot elevation is a point on a map or chart that has its elevation noted, usually in terms of vertical distance from sea level. Spot elevations are a common feature of topographic maps. Topographic maps show both the g... More »

On topographic maps, V-shaped contour lines that point downhill indicate sharp, narrow ridge lines. Ridge lines help people recognize areas of high and low ground when hiking, fishing, hunting or engaging in other outdoo... More »

Read land elevation maps by noting the shape and elevation levels of the contour lines drawn on them. Begin by determining the vertical distance between adjacent lines. This varies from one map to another, but remains co... More »

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