Photo of the Day 83

Glacier, Wrangell-St. Elias National Park, Alaska, 2003

Photograph by Frans Lanting

Streams of ice flow together like rivers, forming glacier complexes that cover hundreds—sometimes thousands—of square miles in Wrangell-St. Elias National Park. Covering more than 13 million acres (5.2 million hectares), Wrangell-St. Elias is the largest national park in the U.S. Nearly six Yellowstones could fit within its borders.

(Photo shot on assignment for, but not published in, "Alaska's Giant of Ice and Stone," March 2003, National Geographic magazine)