Yosemite Mountain Sugar Pine Railroad - Motive Power

Motive Power

• No. 10: a 3 ft (914 mm) narrow gauge three-truck Shay steam locomotive constructed for the Pickering Lumber Company. The locomotive was completed on March 2, 1928 by the Lima Locomotive Works of Lima, Ohio and later acquired by the West Side Lumber Company in 1934. No. 10 burns oil, with a capacity to hold 1,200 US gallons (1,000 imperial gallons; 4,500 liters) of oil and 3,420 US gal (2,850 imp gal; 12,900 L) of water. This locomotive is reputedly the largest narrow gauge Shay locomotive ever constructed.

• No. 15: also a 3 ft (914 mm) narrow gauge three-truck Shay steam locomotive. No. 15 was originally constructed as the No. 9 for Norman P. Livermore & Company, out of San Francisco, California, and soon thereafter sold to the Sierra Nevada Wood & Lumber Co. The locomotive was completed on May 20, 1913 by the Lima Locomotive Works of Lima, Ohio. No. 15 burns oil, with a capacity to hold 1,000 US gal (830 imp gal; 3,800 L) of oil and 2,000 US gal (1,700 imp gal; 7,600 L) of water. In 1917, the No. 15 was acquired by Hobart Estate Co. as their No. 9. In 1938, the No. 15 was given its current number when purchased by the Hyman-Michaels Co., operating out of San Francisco. The West Side Lumber Company purchased No. 15 only a year later. When the West Side shut down in the 1960s, a tourist operation, the West Side & Cherry Valley, acquired the No. 15. After hauling tourists for a number of years, the locomotive sat on static display in Tuolumne, California, until the YMSPRR acquired it in 1988.

• "Jenny" Railcars: Ford Model A automobiles converted for rail use by the West Side Lumber Company. These railcars each accommodate about 12 people, providing regular service in conjunction with the normal steam operation.

• No. 402: a 3 ft (914 mm) narrow gauge center cab two-truck diesel locomotive. The YMSPRR does not use this locomotive for regularly scheduled revenue service.

• No. 5: a 3 ft (914 mm) narrow gauge two axle diesel switch engine built in 1935, but not currently in operating condition.