The railroad went through multiple reorganizations in the early 1880s before becoming part of the Chicago and North Western Railway system.

[5] The company's lines eventually became of the Chicago and North Western Railway's Platteville Subdivision (also known as the Galena branch).

The description tells that the Platteville had 35,000 W.W.O., 6 drivers (drive wheels) each 3 feet (0.91 m) in diameter, and one pony truck in front.

It cost $7,000 and would be used in the extension and construction of the line to Platteville, Wisconsin, which would eventually be completed on 1 January 1875.

The company had earlier built rolling stock for several railroads, such as the Gulf, California and Santa Fe Railway[10] The Galena Gazette article of 27 November 1874[8] mentions a passenger car costing $1,500 being the first such added to the line.

There was a report of a minor incident involving the passenger coach, whereby it left the tracks near the tunnel close to Buncombe P.O.

Most of the freight service seems to have been mainly livestock, although Wisconsin cheese and dairy as well as lead and zinc mined in the region would have been an important source of income.

During the late 1870s, the railroad began losing revenue as flooding and snow storms were regularly stopping all traffic along the line.

[11] The old right-of-way, now abandoned, can still be seen in some places, tracing what was once a small but prosperous locally owned and operated railroad empire stretching between Galena, Illinois, and Platteville as well as Montfort, Wisconsin.

The track ran through Millbrig, also called Bell′s Station, by the 1862 stone grist mill that served as post office and depot.

The mill has been restored and converted into a barn located at Millbrig Hollow on West Council Hill Road.

It was built and used by the G&SWRR, also the site of a spur leading uphill northwest to small station near Hazel Green, Wisconsin.