Cottonwood Canyon State Park, established in 2013, is the second largest state park in Oregon, encompassing 8000acre on the lower John Day River. The largest is Silver Falls State Park at 9064acre.Park headquarters, about a two-hour drive east of Portland, is adjacent to Oregon Route 206 between Wasco and Condon. The river, which here forms the boundary between Sherman County on the west and Gilliam County on the east, meanders for 16mi through the arid park.The walls of the main canyon reach to 1920ft above sea level within the park, which also includes four side canyons: Hay Creek, Esau, Rattlesnake, and Cottonwood. These and the main canyon are flanked by grassland, sagebrush shrub-steppe, river bottom, and cliffs composed mainly of basalts of the Columbia River Basalt Group.HistoryIn 2008, the Western Rivers Conservancy, a non-profit organization based in Portland, bought the land from a cattle-ranching family, the Murthas, who had owned it since the 1930s. The conservancy was able to borrow money from the Wyss Foundation to make a quick purchase possible. Later, Western Rivers offered to sell the land to the Oregon Parks and Recreation Department (OPRD) to create a state park. OPRD agreed and paid Western Rivers what the non-profit had paid the Murthas, $7.86 million.
