Recreation

At the head of the valley in Yosemite National Park, as if on a pedestal, stands Half Dome, the most colossal and recognizable rock monument in the Sierra Nevada, smoothly rounded on three sides and a sheer vertical face on the fourth. From its summit,...
We generally emphasize the following four points:a) Select a coordinate system (also called a "position format") you feel comfortable using. We suggest using Universal Transverse Mercator (UTM) or latitude/longitude. Most users find UTM coordinates ...
Please visit the USGS recreation site: your science gateway for safe and vital enjoyment of the outdoors.Learn more:Reserve America - A handy index of federal, state, and private parks, categorized by their operating agencies.America The Beautiful - The...
The USGS publishes approximately 57,000 different topographic maps covering the United States. Topographic maps show contour lines (elevation and landforms), hydrography (rivers, lakes, marshes), transportation (roads, trails, railroads, airports),...