The line runs from Shoshoni to Bonneville, BNSF Junction mile post 304.0, on the Casper line. It was established in 1995 after BTI bought the rail line abandoned by the Chicago & North Western RR. Badwater Creek runs through Bonneville.
The main operations include loading molten sulfur into tank cars and soda ash trucked in from the Green River area. Soda ash is still loaded at Bonneville in 2004.
The Bad Water Railway built a new railroad line from Lysite to Lost Cabin, WY, to serve a gas-processing plant in 2001. BNSF granted them trackage rights from Bonneville to Lysite.