Geology, Part 2

Another example of the billion+ years old mountains, also at Logan Pass so the elevation here is close to 7000 ft. One of the things I really loved about Glacier National Park is the rainbow of colored rocks visible not only in these old mountains but also in the younger ones underneath. And all the pebbles around the park and in nearby towns reminded me of Easter eggs! When I come back to this park again I would really like to do a ranger-guided geology tour to learn more about these amazing rocks!

And on a completely unrelated photography topic, I did not bring my polarizer on the hike, and look how blue the sky is here! The sun came out midway through the hike, and this particular photo was taken with the sun almost exactly 90 degrees to my left. I know that this is the prime angle for polarizer use, so I guess it also works without a polarizer. When I was living in California I was advised to leave the polarizer at home when photographing up at Lake Tahoe (also 7000 ft.) because the sky will come out a deep shade of blue just from the elevation, although I'm not sure what the physics behind that is.