D&RGW #01 was an oddball. It started life as D&RG 905, a Class 185 standard gauge 2-8-0 made by Baldwin. With the great renumbering by the D&RGW in 1924, it became Class C-41 #955. In 1937, it was the only unit of its class converted to a 2-8-0T tank engine for switching duties around the Salt Lake, UT shops. After this remarkable transformation, it became the #01.