Flatiron Dam and Reservoir are located on Chimney Hollow Creek 8 miles southwest of Loveland, Colorado. The dam and reservoir are features of the Colorado - Big Thompson Project. One campground with 41 campsites. Access is good. THe reservoir has approximately 47 water surface acres, 248 land acres and 2 miles of shoreline. No boating currently allowed. Primary recreational activities include fishing and camping. Primary sport fish available are rainbow trout. Facilities and campground are closed in winter due to ice and snow.

On Chimney Hollow Creek, 8 miles soutwest of Loveland, Colorado.