Geology of Idaho: Earthquakes in Idaho, Mining in Idaho, Volcanism of Idaho, Craters of the Moon National Monument and Preserve, Geology of the ... Basin and Range Province, Yellowstone Caldera - Taschenbuch

Source: Wikipedia. Pages: 47. Chapters: Earthquakes in Idaho, Mining in Idaho, Volcanism of Idaho, Craters of the Moon National Monument and Preserve, Geology of the Pacific Northwest, Yellowstone hotspot, Basin and Range Province, Yellowstone Caldera, 1959 Yellowstone earthquake, Hell's Half Acre Lava Field, Morrison Formation, Coeur d'Alene, Idaho labor confrontation of 1899, Coeur d'Alene, Idaho labor strike of 1892, Sunshine mine, Columbia River Basalt Group, Coeur d'Alene miners' dispute, Snake River Plain, Lake Bonneville, Cordilleran Ice Sheet, Bunker Hill Mining Company, Glacial Lake Missoula, Menan Buttes, Wasatch Fault, Bruneau-Jarbidge caldera, Island Park Caldera, Red Rock Pass, Oakley stone, Belt Supergroup, Henry's Fork Caldera, Hercules silver mine, Burke-Canyon, Lava Creek Tuff, Huckleberry Ridge Tuff, 1949 Olympia earthquake, Mesa Falls Tuff, Independence mine, Threebear, Challis Arc, Sawtooth Fault, Shoshone lava field. Excerpt: Craters of the Moon National Monument and Preserve is a national monument and national preserve located in the Snake River Plain in central Idaho, U.S.A. It is along US 20 (concurrent with US 93 & US 26), between the small cities of Arco and Carey, at an average elevation of 5,900 feet (1,800 m) above sea level. The protected area's features are volcanic and represent one of the best preserved flood basalt areas in the continental United States. The Monument was established on May 2, 1924. In November 2000, a presidential proclamation by President Clinton greatly expanded the Monument area. The National Park Service portions of the expanded Monument were designated as Craters of the Moon National Preserve in August 2002. It lies in parts of Blaine, Butte, Lincoln, Minidoka, and Power counties. The area is managed cooperatively by the National Park Service and the Bureau of Land Management (BLM). The Monument and Preserve encompass three major lava fields and about 400 square miles (1,036 km) of sagebrush steppe grasslands to cover a total area of 1,117 square miles (2,893 km). All three lava fields lie along the Great Rift of Idaho, with some of the best examples of open rift cracks in the world, including the deepest known on Earth at 800 feet (240 m). There are excellent examples of almost every variety of basaltic lava as well as tree molds (cavities left by lava-incinerated trees), lava tubes (a type of cave), and many other volcanic features. Craters of the Moon within IdahoThe Craters of the Moon Lava Field spreads across 618 square miles (1,601 km) and is the largest mostly Holocene-aged basaltic lava field in the lower 48 U.S. states. The Monument and Preserve contain more than 25 volcanic cones including outstanding examples of spatter cones. The 60 distinct lava flows that form the Craters of the Moon Lava Field range in age from 15,000 to just 2,000 years. The Kings Bowl and Wapi lava fields, both about 2,200 years old, are part of the National Preserve.