The Fairhaven and Southern Railroad was a railroad located in the northwest part of Washington State built by the Fairhaven Land Co. founded by E. M. Wilson, E. L. Cowgill, Nelson Bennett, C. X. Larrabee, and Samuel E. Larrabee.
Because there was another group of people building to the north, Bellingham Bay and British Columbia Railroad, the F & S railroad headed south, first to the coal mines in Skagit county then to a connection with the Seattle and Northern Railroad
Work on the road began in 1889 in Fairhaven, Washington, now part of Bellingham, Washington, the line was surveyed towards Lake Samish towards Sedro-Woolley, Washington. The line reached the coal mines in Skagit county in 1890, in 1891 the line connected to the Seattle and Montana Railroad near Burlington, Washington. That road was later connected to the Great Northern Railroad, and later bought out by same.