Lone Mesa State Park in Dolores County, Colorado, lies about 23 miles north of Dolores and differs from a typical public recreation area because it is a closed-access park still under development and planning. Entry is limited to hunting, volunteer work, and educational programs. The park is also significant for its biological importance, as several local endemic species have been found or described there, including Physaria pulvinata, Gutierrezia elegans, and Pakera mancosana.