Pacific Southwest Railway Museum, Railroad museum in Campo, California, United States

The Pacific Southwest Railway Museum occupies a 140-acre site in Campo on the San Diego and Arizona Eastern Railway line, with a restored 1916 depot as its centrepiece. About 90 historic cars and locomotives are held, among them five steam and eighteen diesel locomotives. A large display building lets visitors view or walk through part of the collection, including the "Signal Science" exhibit built from retired railway signals.

The museum's excursions began in 1986 from the restored 1916 depot in Campo, on the San Diego and Arizona Eastern Railway line. Rides toward Miller Creek were suspended indefinitely from 2007 over unsafe track, and the Tecate trips ended when Tunnel Number 3 collapsed. Nature has since reclaimed parts of the line to Plaster City, leaving the museum cut off from the National Rail Network.

The museum tells the story of rail transport in the region through preserved locomotives and cars that show how people and goods moved across decades. The site reflects how trains shaped the economic and social life of California's border area.

The museum sits on a 140-acre site in Campo, in southeastern San Diego County, so arriving by car is the practical option. Excursions from the 1916 depot have been suspended: Miller Creek trips ended in 2007 over unsafe track, and Tecate trips stopped when Tunnel Number 3 collapsed. Check ahead before planning a visit around a ride.

The collection includes rare cars and special vehicles found nowhere else in the region. Many pieces have been restored and put into working condition by volunteers over many decades.