In 1902 biology department head, Professor G.W. Stevens, established The Museum of Natural History at the school. The museum contains a large collection of biological specimens native to Oklahoma, as well as hundreds of Alaskan mammal and bird specimens collected by Stevens during a seven-month trip in 1908. The museum was closed from January 1975 to September 3, 1997, opening after extensive restoration efforts were performed. The museum is located on the second floor of the Jesse Dunn Building, and is the second oldest museum in Oklahoma.