Western Pennsylvania Conservancy

The Western Pennsylvania Conservancy (WPC) is a private nonprofit conservation organization founded in 1932 and headquartered in Pittsburgh, Pennsylvania. WPC has contributed land to 12 state parks and conserved more than a quarter million acres of natural lands. The Conservancy plants and maintains more than 132 gardens in 20 Western Pennsylvania counties, as well as planting thousands of trees through its community forestry program. WPC has protected or restored more than 3,000 miles (4,800 km) of rivers and streams.^[1] In 1963, Edgar Kaufmann Jr. entrusted Frank Lloyd Wright's masterwork Fallingwater to the Conservancy. The house was called the most important building of the 20th century by the American Institute of Architects.

Charity Navigator awarded the Conservancy its highest rating for the seventh year.^[when?] Of the thousands of charities the independent evaluator has reviewed, only 2 percent have received as many consecutive four-star ratings.^[2]