
OM and locomotive No. 483
The Denver & Rio Grande Western No. OM is a rotary snowplow. She was built by the Cooke Locomotive Works in 1889. She was the 24th snowplow built.
The plow was converted to narrow gauge by the D&RG in 1907 and renumbered #OM (known as "Old Maude" by railroad crews).
Today #OM is currently being restored by the C&TS where she will work blowing snow off the tracks along with sister snowplow No. OY.