East Park Reservoir, Utah - 7.5 Minute Series Topo Map National Recreation Area The trenches exposed evidence for

The trenches exposed evidence for three surface-faulting earthquakes in an upper fault zone

Petrified Forest

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along the shores of pristine reservoirs

Location: Cache County and Box Elder County

East Park Reservoir, Utah - 7.5 Minute Series Topo Map National Recreation Area The trenches exposed evidence forThe distinctive characteristic of a topographic map is that the shape of the Earth's surface is shown by contour lines. Contours are imaginary lines that join points of equal elevation on the surface of the land above or below a reference surface, such as mean sea level. Contours make it possible to measure the height of mountains, depths of the ocean bottom, and steepness of slopes. A topographic map shows more than contours. The map also includes