[3] Inside the museum are approximately 10,000 square feet (930 m2) of interior displays of various collections of uniforms and equipment, including "Soldiers of the Northwest", I Corps, the 9th Infantry Division, the Medical Corps, and "The Army Family".

The museum closed on July 2, 2016, and reopened on August 31, 2017, after renovations of the interior exhibits to include dioramas and interactive features.

It is the only remaining structure from a onetime recreational area that was called Greene Park.

[2] The building, in Western Stick–style, was built in 1918 by Pratt & Watson Construction Co. of Spokane, Washington, for the Salvation Army, at a cost of $107,000.

It was named the Red Shield Inn, based on the Salvation Army symbol.