Montello, Nevada - 7.5 Minute Series Topo Map General Utah and Area Hiking Guides Low-sun-angle aerial photography was used

Low-sun-angle aerial photography was used to highlight certain topographic features

A must-have guide for anyone running the river through Desolation and Gray Canyons

The NHC 3D survey was the first exploration-orientated seismic survey shot in the Uinta Basin and was instrumental in the discovery and development of high-Btu

Eldridge Glacier

Exploring Havasupai includes detailed maps

Montello, Nevada - 7.5 Minute Series Topo Map General Utah and Area Hiking Guides Low-sun-angle aerial photography was usedThe 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