Wis. Stat. § 191.20
Every railroad company may, by the vote of two-thirds of its directors, alter or change the route of its railroad, by making and filing with the office of the commissioner of railroads and also by recording in the office of the register of deeds of the county or counties where the alteration or change is to be made, a surveyed map and certificate of the alteration or change. The alteration or change may not deviate from the original route for a greater distance than one mile at any point. No city or village may be left off the railroad by the change of route. The original end points of the railroad, or the route in any city or village, shall not be changed without the approval of the office of the commissioner of railroads after notice to the municipality.
Wis. Stat. § 191.20