Cedar Creek Springs |  Civil Defense Caves |  Craters of the Moon |  Crystal Gold Mine |  Dougout Ranch |  Idaho's Mammoth Cave |  Kuna Cave |  Minnetonka Cave |  Needle's Eye |  Niter Ice Cave |  Paris Ice Cave |  Shoshone Ice Caves |  Sierra Silver Mine Tour |  Wilson Butte Cave

Idaho is a state in the Pacific Northwest of the United States. The capital is Boise, which is also the largest city having about 190,000 inhabitants.

The state is part of the northern Rocky Mountains, the geology is mostly volcanic. Southern Idaho, an area of 60,000km² or 35% of the state is covered with lava. This is the largest unbroken field of lava on the North American Continent. During 30 Million years of eruptions up to 1,500m of lava was deposited. There are impressive volcanism related National Parks, like Yellowstone Park and Craters of the Moon National Monument. Many relevant caves are of volcanic origin, especially lava tubes, but there are also karst caves.

The state also has some mining activities, but only few tourist mines. The complex geology in an orogenic area results in a great variety of natural resources. However, the most important resource is gold.

See also

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