Mt Rainier National Park. Photo by Kathy Chrestensen. Tweeted by the US Department of the Interior, 11/30/15.
Wyoming’s Grand Teton National Park. Photo by Christina Adele Warburg. Tweeted by the US Department of the Interior, 12/11/15.
California’s Conway Summit. Photo by Bob Wick. Tweeted by the US Department of the Interior, 12/11/15.
Grand Teton National Park. Tweeted by the US Department of the Interior, 12/11/15.