From the record
“Schafer State Park is a public recreation area along the Satsop River located midway between Olympia and Aberdeen in the Satsop Hills of Mason County, Washington. The 122-acre (49 ha) state park offers camping, two miles of hiking trails, fishing, swimming, birdwatching, interpretive activities, wildlife viewing, and horseshoes.”
Wikipedia article Schafer State Park, CC BY-SA 4.0.
One of 16 National Register listings published here for Mason County · listed in 2010 · category: District · built in 1924, National Park Service rustic.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service