A note about Mt. Adams: Mt Adams is a stratovolcano! It is the second highest peak in Washington, too; and larger than Mt Rainier in sheer eruptive volume. It would bury Manhattan Island in over 300 feet of material. At 12,286 feet, is also the 3rd highest volcano in the Cascade Range, after Mt Rainier and Mt Shasta!
I took a few timelapses at this meadow, and elsewhere, for the Equestria: Into the Wild film, too.