Crescent Valley, Nevada - 30x60 Minute USGS Topographic Map colorado river • Starting point elevation

• Starting point elevation

and Box Elder County

+ 4 Appendices

As busy urbanites who have learned how to do everything from making cheese and curing meat to collaborating with neighbors on a food bartering system

and wildfires (where subsequent debris flows are a hazard) with a field investigation and a report of the geologic effects and potential hazards

Crescent Valley, Nevada - 30x60 Minute USGS Topographic Map colorado river • Starting point elevationThe 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