San Francisco and San Mateo Electric Railway

San Francisco & San Mateo Electric Railway
Overview
HeadquartersSan Francisco
LocaleCalifornia
Dates of operation18921902
SuccessorUnited Railroads of San Francisco
Technical
Track gauge4 ft 8+12 in (1,435 mm) standard gauge
Electrification550 V DC
Length21 miles (34 km)

The San Francisco and San Mateo Electric Railway (SF&SM) was the first electric streetcar company in San Francisco, California. The company was only in business for ten years, starting from 1892 until it was merged into the United Railroads of San Francisco (URR) in 1902.