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 Grace State Forest third tower to have been constructed on Mount Grace. Forest trails used for hiking, horseback riding, mountain biking, and cross-country skiing include a portion of the long-distance Metacomet-Monadnock Trail. The forest also offers picnicking and restricted hunting. Mount Grace State Forest Mount Grace State Forest is a publicly owned forest with recreational features located in the town of Warwick. The state forest centers around Mount Grace, which at is the third highest point in Massachusetts east of the Connecticut River after Mount Wachusett and Mount Watatic. It is bordered by portions of Warwick State Forest to the east and west