Big Bend National Park at sunset. Photo by Saurabh Ray. Tweeted by the US Department of the Interior, 4/15/16.
Wow! Lightning strike at the otherworldly Devils Tower National Monument. Photo by Judit Fabian. Tweeted by the US Department of the Interior, 4/13/16.
Grand Canyon National Park at sunset. Photo by Randy Langstraat. Tweeted by the US Department of the Interior, 4/22/16.