The Petaluma & Santa Rosa Railway was incorporated in 1903. That was extended into Sebastopol in 1904. In 1928 it would be purchased by the Northwestern Pacific Railroad. Trolley service was discontinued in 1933. In 1984 the lines from Santa Rosa and Sebastopol were abandoned. The Northwestern Pacific Railroad continued using the south end of the line to service local industries. Today it serves companies like the Lagunitas Brewering Company who receives three train cars per week full of malted barley from Canada to make their popular IPA, Little Sumpin’ Sumpin’ and Imperial Stout beers.
Here are some photos of the Petaluma Trolley Living History Railway Museum.