Shoshone Indian Ice Caves - Shoshone, Idaho
Shoshone Indian Ice Caves - Shoshone, Idaho
This lava tube is 1,000 ft. long with a ceiling height of between 8 and 30 ft. The collapsed roof serves as an entrance. The cold trap effect and the extremely different temperatures in Idaho between the summer and the winter make it a perfect ice cave. Now, the cold air flows down into the cave during the winter and freezes all the water entering the cave through fractures. This produces a continuous layer of ice. It is cold in the cave (obviously) with a temperature between -7 degrees C. and .5 degrees C depending on which area you are in. The outside temperature may reach 37 degrees C so warm cloths and sturdy shoes are a must.

