As winter's powdery snow and glistening ice cover parts of the nation, check out these must-see shots from national parks like Yellowstone, Grand Canyon, Great Sand Dunes, Lake Clark and more.

Grand Canyon of the Yellowstone is ranked #1 out of 17 things to do in Yellowstone National Park. See pictures and our review of Grand Canyon of the Yellowstone.

According to the National Park Service, Yellowstone holds about half of the world's active geysers, and it's also home to one of nature's most spectacular landscapes: the Grand Canyon of the ...

Moran's depiction of the Grand Canyon of the Yellowstone proved to be especially moving, and soon became the defining image of Yellowstone for 19th-century Americans who lacked the means to visit ...

Calcite Springs Overlook offers stunning views of the Grand Canyon of the Yellowstone River. It's hugely popular with photographers, but one visitor got a little too close this week, climbing over ...

Grand Canyon, UNESCO World Heritage Site, Arizona, 1962. (Photo by Erich Andres/United Archives via Getty Images) Unknown Artist, Mr. and Mrs. George Rink, Zion National Park, Utah, 9/16/1945 ...

Stretching from the Lower Falls to the Tower Falls area, the Grand Canyon of the Yellowstone is about 28 kilometers (17 miles) long, 250–350 meters (820–1,150 feet) deep, and 450–1,200 ...

Or visit the Grand Canyon of the Yellowstone and its world-famous views of the Upper and Lower Falls of the Yellowstone River. Just go at sunrise for great light and to beat the crowds.

Formed over thousands of years of erosion caused by hydrothermal activity, water and other natural forces, the Grand Canyon of the Yellowstone is the primary attraction in the Canyon Village area ...