The Western Museum of Mining & Industry is a museum in Colorado Springs, Colorado, dedicated to the mining history and industrial technology of the western United States. The museum was founded in 1970, and has been accredited by the American Association of Museums since 1979. The museum building houses antique mining equipment and steam engines. Some of the pneumatic machines are connected to compressed air so that they can be viewed in actual operation. The museum also includes a recreation of an old assay office and scale models of mines and mills.