Black Rapids Glacier - lwpetersen photography
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Pond

Pond

On the right is rock debris from a landslide that occurred in 2002 after a 7.9 earthquake on the Denali Fault. The debris crossed the entire width of the glacier, 3 km wide. The debris insulates the ice, protecting it from melt which is why it is so much higher than the ice we were standing on. This provides a natural dam for water flowing down the streams on the glacier creating large ponds and lakes.

debrisblack rapids glacierlandslidelakealaska rangemountainsalaska

From 2014-06-16