Hogup Ridge South, Utah - 7.5 Minute Series Topo Map Portugal Yanert Fork

Yanert Fork

Whether you’re looking to explore the underground world of Mammoth Caves or make your way through the mangroves of Everglades National Park

National Geographic's Trails Illustrated map of Grand Canyon West covers some of the less frequented but just as wondrous landscape of Grand Canyon National Park

Whether you're a new hiker looking for expert advice

approach and descent information

Hogup Ridge South, Utah - 7.5 Minute Series Topo Map Portugal Yanert ForkThe 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