![On the western side of Mount Hood lies the longest glacier cave system in the contiguous United States. In 2012, these caves were mapped to a combined length of 7,166.8 feet by cave explorers Brent McGregor and Eddy Cartaya. Currently, the total passage length is hundreds of feet less. Glaciers are frozen rivers; they are always moving and changing. In the past five years, we have seen the caves melt, shrink and collapse in a dramatic way. The caves are formed by water carving away at the ice. (Photo and caption by Josh Hydeman)](https://pix.avax.news/avaxnews/6e/0d/00020d6e_medium.jpeg)
On the western side of Mount Hood lies the longest glacier cave system in the contiguous United States. In 2012, these caves were mapped to a combined length of 7,166.8 feet by cave explorers Brent McGregor and Eddy Cartaya. Currently, the total passage length is hundreds of feet less. Glaciers are frozen rivers; they are always moving and changing... (Photo and caption by Josh Hydeman)
22 Mar 2015 11:05:00,post received
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