Positive
Only logged in members can reply and interact with the post.
Join SimilarWorlds for FREE »

Colored rocks of Lake McDonald

Glacier National Park, Montana

The rocks' colors are determined by the amount of iron in them:
Red and maroon rocks: Have more iron and were formed in shallower waters where the iron oxidized

Blue and green rocks: Have less iron and were formed in deeper waters where they weren't exposed to as much oxygen

Has anyone been here? I haven't yet, but it's on my list.

This page is a permanent link to the reply below and its nested replies. See all post replies »
SW-User
Beautiful