Cascade Creek filters through boulders in tiered horsetails above the trail, then freefalls in a dramatic plunge at Upper Cascade Falls, Ouray, Colorado. Photo by Susan Joy Paul.

Hiking Waterfalls in Colorado: A Guide to the State’s Best Waterfall Hikes (July 2013, FalconGuides) is available for pre-order, with driving directions, route descriptions, maps, photos and GPS waypoints to 150 Colorado waterfalls.