The Mt. Rainier Railroad and Logging Museum or MRRR, formerly the Mt. Rainier Scenic Railroad (MRSR), was a steam-powered heritage railroad operating in the U.S. state of Washington between Elbe and Mineral. The railroad traveled on trackage that passes through thick forest just south of Mount Rainier. The depot, gift shop and ticket office are located in Elbe. The train traveled to the Logging Museum exhibits located in Mineral. The MRRR ran its collection of vintage rail equipment over seven miles of track, part of Tacoma Rail's Mountain Division.