Rio Grande Southern Railroad, recognized by its RGS reporting mark, was a narrow-gauge railroad founded in the late 19th century to serve mining regions in southwestern Colorado while operating through rugged mountain territory and remote western communities. Rio Grande Southern trains for sale often feature narrow gauge steam locomotives, freight equipment, and railroad models inspired by Colorado mining railroads and historic mountain rail operations.
RGS locomotive models and narrow gauge rolling stock remain especially popular with collectors and model railroaders building western mining routes, scenic mountain layouts, and nineteenth-century rail operations. These railroad models are commonly added to model trains focused on Colorado narrow gauge railroading and classic western transportation.