From the record
“The Brush Creek Work Center in Medicine Bow National Forest near Saratoga, Wyoming is a ranger station of the USDA Forest Service, Region 2 that was built during 1937-41, by the Ryan Park CCC Camp, and is listed on the National Register of Historic Places. It was designed by architects of the United States Forest Service in rustic style.”
Wikipedia article Brush Creek Work Center, CC BY-SA 4.0.
One of 43 National Register listings published here for Carbon County · listed in 1994 · category: District.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service