The SG & N was the third of three narrow-gauge railroads to be based in Silverton, Colorado and was the shortest of the 3 at 7.2 miles. Its path up Cement Creek included grades pitched at 5 1/2% and 99 curves of which 5 were wracked into 40-degree contortions. It opened on 2 July 1899.
After operating a couple of small, used Consolidations, the SG & N bought the Gold Prince, which was a much bigger and heavier locomotive.
After the closing of the Kendrick-Gelder smelter in 1908, the railroad went into irreversible decline and was leased in 1910 by Otto Mears, the owner of the other Silverton railroads and bought outright in 1915..
Silverton sold the 34 to the White Pass & Yukon in 1942; the WP & Y renumbered the engine 24.
|Specifications by Steve Llanso of Sweat House Media|
|Railroad||Silverton, Gladstone & Northerly|
|Number in Class||2|
|Builder||Burnham, Williams & Co|
|Locomotive Length and Weight|
|Ratio of driving wheelbase to overall engine wheebase||0.59|
|Overall Wheelbase (engine & tender)|
|Axle Loading (Maximum Weight per Axle)|
|Weight on Drivers||70000 lbs|
|Engine Weight||80000 lbs|
|Tender Light Weight||54000 lbs|
|Total Engine and Tender Weight||134000 lbs|
|Tender Water Capacity||2500 gals|
|Tender Fuel Capacity (oil/coal)|
|Minimum weight of rail (calculated)||29 lb/yard|
|Geometry Relating to Tractive Effort|
|Boiler Pressure||160 psi|
|Cylinders (dia x stroke)||16" x 20"|
|Tractive Effort||18819 lbs|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||3.72|
|Firebox Area||61.20 sq. ft|
|Grate Area||15.80 sq. ft|
|Evaporative Heating Surface||1149 sq. ft|
|Combined Heating Surface||1149 sq. ft|
|Evaporative Heating Surface/Cylinder Volume||246.87|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||2528|
|Same as above plus superheater percentage||2528|
|Same as above but substitute firebox area for grate area||9792|