The first group of 4-8-2s acquired by the Denver & Rio Grande Western were the M-67 class, coming from American Locomotive Company's Brooks Works in 1922. With 63-inch drivers (one source gives the driver diameter as 67 inches), they developed 62,661 pounds of tractive force. Cylinder dimensions were 28x30 inches and boiler pressure was 210 p.s.i. They had 4667 square feet of evaporative heating surface and 1333 square feet of superheater surface, plus an 80-square-foot grate area. These low-drivered Mountains had a locomotive weight of 377,000 pounds; all were retired by 1955. An unspecified photographer captured this photo of No. 1509 at Salt Lake City on September 3, 1949 in an image acquired through an eBay seller.