Roxborough State Park is a state park of Colorado, United States, known for dramatic red sandstone formations. Located in Douglas County south of Denver, Colorado, the park was established in 1975. In 1980 it was recognized as a National Natural Landmark. Geography Roxborough State Park, a Colorado State Park, is known for dramatic red sandstone formations. Located in Douglas County south of Denver, Colorado. In 1980 it was recognized as a National Natural Landmark because of the number of ecological systems and geological formations. It is also a State Historic Site and National Cultural District because of the number of archaeological sites. Climate According to the Köppen Climate Classification system, Roxborough State Park has an oceanic climate, abbreviated "Cfb" on climate maps. The hottest temperature recorded in Roxborough State Park was on July 17, 1997, and July 21, 1997, while the coldest temperature recorded was on February 2, 2011. Geology Roxborough State Park is a designated Colorado Natural Area and National Natural Landmark for its 300-million-year-old red sandstone Fountain Formations that tilt at a 60 degree angle. The park includes great examples of exposed Precambrian to Late Mesozoic hogback, monolithic and spire formations from the Permian, Pennsylvanian and Cretaceous age. Carpenter Peak's exposed monzonite is from the Precambrian era. Flora and fauna The park consists of forests of ponderosa pine and Douglas fir, prairie land, and woodlands that support many forms of wildlife. There are 145 bird, over 50 butterfly and moth, and 11 amphibian and reptile species. Mammals commonly found in the park include black bear, coyote, deer, elk, fox, mountain lion, prairie dog, and rabbit. Sources of water include Little Willow Creek, Willow Creek and Mill Gulch. Elevations range from . Visitors The park has visitors center with exhibits, a bookstore, and restrooms. There are six hiking trails in Roxborough State Park, a network of easy to moderate trails that also connect to Douglas County trail system, Pike National Forest and Waterton Canyon trails. See also Colorado State Parks Roxborough State Park Archaeological District References External links Roxborough State Park State parks of Colorado Fountain Formation National Natural Landmarks in Colorado Protected areas of Douglas County, Colorado Protected areas established in 1975 Rock formations of Colorado Landforms of Douglas County, Colorado