The Western Pennsylvania Conservancy (WPC) is a private nonprofit conservation organization founded in 1932 and headquartered in Pittsburgh. WPC has contributed land to 12 state parks, conserved more than 252,000 acres (102,000 ha) of natural lands, plants and maintains more than 130 gardens and greening projects in 19 Western Pennsylvania counties and has protected or restored more than 3,000 miles (4,800 km) of rivers and streams. In 1963, Edgar Kaufmann jr. entrusted Frank Lloyd Wright's masterwork Fallingwater to WPC.