The Hart Ranch is visible on either side of US Highway 285, three miles south of Fairplay. Conservation easements held by Colorado Open Lands encompass 1,042 acres, more than two miles of stream, a rare wetland community, and nearly 100 acres of important bird habitat.
Funding for the conservation easement was provided from Great Outdoors Colorado, The Nature Conservancy, Park County Land and Water Trust Fund, and the National Fish and Wildlife Foundation.
In 2010 the Park County Land & Water Trust Fund also provided funds to improve stream and riparian habitat along one mile of Fourmile Creek at the Hart Ranch. This portion of stream is now available for public fly-fishing access, by reservation only, at South Park Fly Fishers (Lower Fourmile Creek Ranch).