Horton Plains National Park is a protected area of Sri Lanka in the Highlands near Nuwara Eliya. The area is covered by mountain meadows and cloud forests. The plateau has an average altitude of 2,200 m. The Horton Plains were designated a wildlife preserve on December 5, 1969, and elevated to national park status on March 18, 1988 because of the value of its biodiversity. With the Peak Wilderness Sanctuary and the Knuckles Conservation Forest, the park is listed on the World Heritage List in 2010 under the title "Central Highlands of Sri Lanka" The Horton Plains are the sources of three major rivers of Sri Lanka, Mahaweli, Kelani and Walawe. Stone tools dating from the Balangoda culture were found in the park. The precipices of World's End and Baker's Falls are very popular places for visitors.