Natural Bridge Falls & Picnic Area
This Forest Service day use area is a fantastic place to view the awesome force of water. During high water, The Boulder River spews over a 105-foot-tall limestone rock layer creating a spectacular waterfall. During low water, the entire river travels underground through eroded channels carved from 1000s of years of water pressure and erupts from several places below the falls. The rivers reemergence looks as if the river is bursting out of the cliff edge.
Named for a gravity defying limestone arch that once spanned the Boulder River just above the falls. In 1988, that natural feature collapsed due to limestone’s easy erodibility. Today, there is a man-made bridge safely carrying visitors from one side of the roaring river to the other.
Informational signs line the trails describing the geology and history of the area. The site also offers accessible paved trails and picnic tables and is the trailhead for Green Mountain Trail which will take you to a saddle offering a view of both the East Boulder and Main Boulder Valleys and both the river-fed corridors.