NASA Seasons of Snow Cover in the West

Astronauts aboard the International Space Station captured this photo while flying over the western United States. The wide field of view stretches from the Sierra Nevada of California to the Columbia Plateau of Oregon and the Snake River Valley of Idaho. Lake Tahoe is nestled on the border of California and Nevada. via NASA http://www.nasa.gov/image-feature/seasons-of-snow-cover-in-the-west