Walden, Colorado - 30x60 Minute Series Topo Map SAN RAFAEL SWELL The primary source of recharge

The primary source of recharge is assumed to be infiltration of precipitation in the main part and seepage from the Santa Clara River in the Gunlock part

The map contained on this compact disc is a digital version of the geologic map of the Lehi quadrangle and part of the Timpanogos Cave quadrangle

Douglas Sprinkle

Geologic data for the bedrock areas of the Lynndyl 30-by 60-minute quadrangle were compiled from a variety of published and unpublished sources

Geology of Utah's Parks and Monuments

Walden, Colorado - 30x60 Minute Series Topo Map SAN RAFAEL SWELL The primary source of rechargeThe 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