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 Buangor State Park Mount Buangor State Park Mount Buangor State Park is located 60 kilometres west of Ballarat, Victoria in Bayindeen. The eucalypt trees include yarra and manna gums, blue gums and Messmates, narrow-leaf peppermint gums, snow gums and Red Stringybarks as well as large tree ferns. More than 130 species of birds have been recorded in the Mount Cole State Forest which includes this park. Fauna includes echidnas, deer, eastern grey kangaroos, wallabies, possums, gliders and bats. The local Aboriginal people in the area were the Beeripmo Balug clan of the Djab Wurrung tribe. Mount Buangor was previously known as Flagstaff Hill