Known as the “Grand Canyon of the East,” this 14,350-acre scenic park features year-round recreational activities and accommodations. Gorges over 600 ft. carved by the Genesee River. Narrated tours. Winter offers snowmobile trails, x-country skiing and tubing. The William Pryor Letchworth Museum tells the story of Letchworth State Park from the prehistoric era to modern times. It houses its benefactor William Pryor Letchworth's personal collections, including Native American and pioneer artifacts as well as Civilian Conservation Corps materials. Path Through History attraction.