The Longmire Campground Comfort Stations were built in the early and mid-1930s in Mount Rainier National Park

Mount Rainier National Park

Mount Rainier National Park is a United States National Park located in southeast Pierce County and northeast Lewis County in Washington state. It was one of the US's earliest National Parks, having been established on March 2, 1899 as the fifth national park in the United States. The park contains...

 to provide toilet facilities to automobile tourists camping in the park at Longmire

Longmire, Washington

Longmire, which is effectively encompassed by the Longmire Historic District, is a visitor services center in Mount Rainier National Park, located east of the Nisqually Entrance. The area is in the Nisqually River valley at an elevation of...

. Essentially the same in design, the facilities were designed by the National Park Service

National Park Service

The National Park Service is the U.S. federal agency that manages all national parks, many national monuments, and other conservation and historical properties with various title designations...

 Branch of Plans and Designs. Their construction was supervised by park landscape architect Ernest A. Davidson

Ernest A. Davidson

Ernest A. Davidson was an American architect.Among his works are two National Park Service building complexes at Mt. Rainier National Park:*Longmire Buildings, which was designated to be a National Historic Landmark, and...

. The timber frame buildings followed the tenets of the prrevailing National Park Service Rustic

National Park Service Rustic

National Park Service rustic, also colloquially known as Parkitecture, is a style of architecture that arose in the United States National Park System to create buildings that harmonized with their natural environment. Since its founding, the National Park Service consistently has sought to provide...

 style.

The comfort stations form a part of the Longmire Historic District, which is itself within the Mount Rainier National Park National Historic Landmark District, comprising the entire park. They are each individually listed on National Register of Historic Places

National Register of Historic Places

The National Register of Historic Places is the United States government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation...

, as of March 13, 1991.