Since 1986, the Pacific Southwest Railway Museum operates all-volunteer train excursions from the restored 1916 Depot in Campo, in the Mountain Empire area of southeastern San Diego County, California. These trains are powered by vintage diesel-electric locomotives.[4][5] The facility sits on a 140 acres (0.57 km2) property.[6]
The museum also has approximately 90 historic railroad cars and locomotives on display, including five steam locomotives, eighteen diesel locomotives and many other pieces of rolling stock.[7] A large display building houses part of the railroad equipment collection which allows visitors to view or walk through the equipment. This includes an exhibit titled "Signal Science" which uses retired railroad signals to demonstrate how railway signals work. The museum is also home to the Southwest Railway Library, which opened in Campo in July 2014. The library contains the second largest collection of railroad history in California.[8][9][10]
Part of the There Goes a... episode "There Goes a Train" features the railroad museum in Campo.[14] The video was made in 1994 and the museum was closed for the week of shooting. In the video, the museum's ALCO MRS-1United States Air Force 2104 locomotive was pulling a 3-car Golden State excursion train heading east.[7] The museum was also a filming site for the Real Rockin' Wheels video, "Train Songs" Feature a San Diego and Arizona EMD MRS-1 1809.