Growler Peak, Arizona - 7.5 Minute Series Topo Map Petroglyphs & Pictographs Natural Bridges National Monument

Natural Bridges National Monument

near the eastern border of Zion National Park

Mike Kelsey has expanded his best selling guidebook: Non-Technical Canyon Hiking Guide to the Colorado Plateau

Long recognized as one of the seminal volumes on the fundamentals of map

Growler Peak, Arizona - 7.5 Minute Series Topo Map Petroglyphs & Pictographs Natural Bridges National MonumentThe 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