Lee Petersen on Nostr: Rocks on ice pedestals on the Castner Glacier, with the O'Brien Icefall visible in ...

Rocks on ice pedestals on the Castner Glacier, with the O'Brien Icefall visible in the background. The rocks insulate the ice beneath them, causing the surrounding ice to melt faster.

My hiking guide to the area: https://www.lwpetersen.com/alaska-guide/castner-glacier-hiking-guide/

#Alaska #hiking #glacier