The Silverton Railroad was a narrow-gauge mining railroad built by entrepreneur Otto Mears in the San Juan Mountains of Colorado.
It connected Silverton with mining areas north toward Red Mountain and the rich districts around Ironton.
The route was constructed through exceptionally difficult terrain where grades, curves, snow, and avalanche exposure shaped operations.
Mears already had extensive experience building toll roads through the San Juans before moving into railroad development.
The Silverton Railroad connected with the Denver & Rio Grande at Silverton, allowing ore and supplies to move into the wider rail network.
Traffic depended heavily on mining, making the railroad vulnerable to economic downturns and mine closures.
Snow and avalanche damage imposed high maintenance costs and could interrupt service for long periods.
The railroad eventually declined as mining traffic weakened and competing lines changed the local transportation pattern.
Portions of the grade remain visible and are important archaeological evidence of mountain railroad engineering.
For TransitSatellite, the Silverton Railroad should be mapped separately from the later Silverton Northern and Silverton, Gladstone & Northerly, which served related districts but were distinct companies.