America’s Great Outdoors Tumblr updates

04/17/2014 10:17 AM EDT

Arguably some of the planet’s most unique and spectacular geologic features are the narrow slot canyons of the Colorado Plateau — and the grand-daddy of them all is Buckskin Gulch in the BLM-managed Paria Canyon-Vermillion Cliffs Wilderness/National Monument. Straddling the Utah/Arizona border, this 13 mile long canyon is 400 feet deep and sometimes as narrow as six feet — not just at the bottom but all the way up to the canyon rims (thus the name “slot”). In places you can’t see the sky when looking up; only the sun’s indirect glow bouncing off the scalloped rock walls & creating an ever-changing colorful tapestry. Logs wedged between the narrow walls 20-30 feet above the stream-bed are a reminder to avoid the area during the summer monsoon, when flash floods combined with no escape routes make the canyon unsafe for hiking.

Photo: Bureau of Land Management