Inside Mount Hood's hidden glacier caves

Name: Inside Mount Hood's hidden glacier caves
Uploaded: 2025-09-26T00:00:00+00:00
Duration: 1754 s
Description: In 2011 two Oregon cavers found more than a mile of tunnels inside the Sandy Glacier, the largest known glacier cave system in the lower 48 states, and began mapping it.

SEP 26 2025

In 2011 two Oregon cavers found more than a mile of tunnels inside the Sandy Glacier, the largest known glacier cave system in the lower 48 states, and began mapping it.

Source: YouTube

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Inside Mount Hood's hidden glacier caves

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