Yosemite Mountain Sugar Pine Railroad

The Yosemite Mountain Sugar Pine Railroad (YMSPRR) is a historic narrow gauge railway with two operating steam locomotives located near Fish Camp, California, in the Sierra National Forest near the southern entrance to Yosemite National Park. Rudy Stauffer organized the YMSPRR in 1961, utilizing historic railroad track, rolling stock and locomotives to construct a tourist line along the historic route of the Madera Sugar Pine Lumber Company.

Service began with the purchase of three-truck Shay locomotive No. 10 from the West Side Lumber Company railway of Tuolumne, California. Built in 1928, No. 10 is reputedly the largest narrow gauge Shay locomotive—and one of the last constructed. In 1986, the YMSPRR purchased Shay No. 15—also a former West Side Lumber Company locomotive—from the West Side & Cherry Valley Railroad tourist line in Tuolumne.

The steam locomotives operate daily during the summer months, while the railroad's "Jenny" railcars, capable of carrying about a dozen passengers, typically handle operations during the off-season. Passengers can ride in either open-air or enclosed passenger cars.

History
The current railroad follows a portion of grade originally carved into the mountain by the Madera Sugar Pine Lumber Company in the early 20th century. The company originated in 1874, when it was organized as the California Lumber Company to log the area surrounding Oakhurst, California. The Madera Sugar Pine Lumber Company once had a large sawmill at Sugar Pine, California, just south of the current YMSPRR. The railroad had seven locomotives, over 100 log cars, and 140 mi of track in the surrounding mountains. In addition to the railroad, the Company also transported lumber in a flume that stretched 54 mi from Sugar Pine to Madera, California. This was the most efficient way to transport rough cut lumber out of the mountains for finishing and transport at the bottom of the mountain. The Madera Sugar Pine Lumber Company practiced clearcutting, which removed almost every single tree within the stands of timber surrounding the YMSPRR track. The thick forest surrounding YMSPRR today belies this history, although large stumps from the original old growth timber dot the forest floor lining the tracks.

Due to the onset of the Great Depression and a lack of trees, the operation closed in 1931. But the graded right-of-way through the forest remained, enabling the Stauffer family to reconstruct a portion of the line in 1961. The current railroad utilizes locomotives, converted log disconnect cars, and other railroad equipment purchased from the West Side Lumber Company after it ceased railroad operations in 1961.

After his retirement in 1981, Rudy Stauffer was succeeded by his son, Max, as the railroad's owner and operator. Max Stauffer died on March 10, 2017.

In late August 2017, the Railroad Fire, which started near the railroad, destroyed West Side Lumber Company equipment stored on a side track.

Locomotives
The Yosemite Mountain Sugar Pine Railroad boasts a collection of historic locomotives, including two working steam locomotives:
 * No. 10: This narrow gauge behemoth, built in 1928 by Lima Locomotive Works, is reputedly the largest Shay locomotive ever constructed. Originally built for the Pickering Lumber Company, it found its way to the West Side Lumber Company in 1934 before joining the YMSPRR. It burns oil and has a capacity of 1200 USgal of oil and 3420 U.S.gal of water.
 * No. 15: Another narrow gauge Shay locomotive, No. 15 has a rich history working for various companies since its construction in 1913 by Lima Locomotive Works. After stints with Norman P. Livermore & Company, Sierra Nevada Wood & Lumber Co., Hobart Estate Co., and Hyman-Michaels Co., it ended up with the West Side Lumber Company and later the West Side & Cherry Valley tourist operation. The YMSPRR acquired it in 1988. It burns oil and has a capacity of 1000 U.S.gal of oil and 2000 USgal of water.
 * "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. 5: a two-axle diesel switch engine built in 1935, not currently in operating condition.
 * No. 402: a center cab two-truck diesel locomotive. The YMSPRR does not use this locomotive for regularly scheduled revenue service.

Points of interest

 * The Thornberry Museum, a historic log cabin built over 140-years ago, offering visitors a glance at what life was like on the slopes of the Sierras over a century ago
 * The Sugar Pine Trading Company, providing a selection of literature and sources related to the YMSPRR, railroads and the history of Yosemite Valley
 * Picnic and event grounds at the eastern terminus of the line
 * Gold panning
 * A rare narrow gauge snowplow, the West Side Lumber Company's plow No. 2