Rail Insider-Light-rail update: San Diego Metropolitan Transit System's trolley renewal project:. Information For Rail Career Professionals From Progressive Railroading Magazine
List of San Diego Trolley stations - Wikipedia
San Diego's lovable 'Trolley' actually three high-tech light-rail train lines - oregonlive.com
I drew a map of the SEPTA trolley and rapid transit system in 1974. : r/philadelphia
San Diego Trolley, late 2021 service map, after the Mid-Coast Trolley Extension to UC San Diego opens [oc] : r/TransitDiagrams
The Trolley Era in Rockville, 1900-1935 | Peerless Rockville