Which state is Sisters State Park located in, which is bisected by U.S. Route 20, the longest road in the United States, spanning 3365 miles?
Sisters State Park Sisters State Park is a state park located at the southeast side of the town of Sisters in Deschutes County, Oregon, United States. The park property is bisected by U.S. Route 20 and Oregon Route 126, creating three separate parcels. The park covers 28 acre of undeveloped forest land along Whychus Creek. It is adjacent to two developed city parks that were once part of the state park. Sisters State Park is administered by the Oregon Parks and Recreation Department.
Washington State Route 510 State Route 510 (SR 510) is a 13.07 mi long state highway in Thurston County, a subdivision of the US state of Washington. The highway extends southeast from an interchange with Interstate 5 (I-5) in Lacey to SR 507 in Yelm. SR 510 roughly parallels the Nisqually River, the border between Thurston and Pierce counties, between the Fort Lewis and Nisqually Indian Community area to Yelm.