Gnarled Old Tree, Grand Canyon National Park, July 2011.
(By Will Berlin)
Wrangell-Elias National Park 1 by zrim on Flickr.
Wrangell-St. Elias National Park, Alaska
Hot Spring, Yellowstone National Park. May 2009.
May 2009, Yellowstone, Old Faithful Area at Sunset.
Canadian Rockies, River. May, 2009.
May 2009, Geyser in Old Faithful Area, Yellowstone National Park.
