1.3 hr
The hike involves a circumnavigation of Umatilla Rock, a narrow rock blade that passes below Dry Falls. This area lies midway along the 50-mile Grand Coulee—one of the longest and most spectacular chasms carved out by up to 100 gargantuan Ice Age floods.
Umatilla Rock - Monument Coulee. Photo copyright caitoh234. Full-size image
No caption provided.