The hall was built by six locals of the United Mine Workers to accommodate union and community activities in the coal-mining community of Superior, and bears the UMWA logo on its pediment, and the inscription Union Hall over the entrance.
Built in 1921, the two-story brick hall's plan is a parallelogram, thought to be unique for its time in Wyoming.
The hall housed doctors' and dentists' offices, a bowling alley and a grocery store.
Dances were held in the upstairs meeting space.. With the closing of the Superior mines in the 1960s the union hall was sold in 1964.
The South Superior Union Hall was added to the National Register of Historic Places in 1983.