horsetail falls

American A seasonal waterfall in Yosemite National Park, California, United States, that flows down the eastern edge of El Capitan and is renowned for glowing bright orange at sunset in mid-February when illuminated like a firefall.

American Any of several other scenic waterfalls in the western United States—most notably in the Columbia River Gorge in Oregon and in the Sierra Nevada near Lake Tahoe in California—whose descending water fans out in the shape of a horse's tail.