Mount Rushmore climbers to monitor and seal cracks annually. Due to budget constraints, the memorial is not regularly cleaned to remove lichens. However, on July 8, 2005, Alfred Kärcher GmbH, a German manufacturer of pressure washing and steam cleaning machines, conducted a free cleanup operation which lasted several weeks, using pressurized water at over . The flora and fauna of Mount Rushmore are similar to those of the rest of the Black Hills region of South Dakota. Birds including the turkey vulture, bald eagle, hawk, and meadowlark fly around Mount Rushmore, occasionally making nesting spots in the ledges of the mountain. Smaller
Mount Blue State Park Mount Blue State Park Mount Blue State Park is a public recreation area covering in the town of Weld, Franklin County, Maine. The state park's bifurcated land includes acreage on the west shore of Webb Lake as well as Mount Blue and other peaks to the east of the lake. The park is connected by road with the Tumbledown Public Lands, the site of Little Jackson Mountain, Tumbledown Mountain, and Tumbledown Pond, an alpine lake near the top of Tumbledown and Little Jackson mountains. The park and public lands are managed by the Maine Department of Agriculture, Conservation and Forestry.