| No. | Class | F.M. Whyte | Gauge | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|---|---|
| 18 | 2-8-0 | 4'-8½" | A&A (Boyne City) | Arcade & Attica Railroad, Arcade, NY | operational | Alco (Cooke) #62624, 1920 | Temporarily used the tender of A&A 14. Will now use the tender from Mississippian 2-8-0 76. Taken out of service in early 2017 due to a crack in the boiler. Returned to operation on August 14, 2024. Re-debuted in excursion service on September 28, 2024. | |
| 3 | 2-4-2 | 36" | M.A. Patout & Son | Six Flags Over Texas, Arlington, TX | operational | Alco (Dickson) #1280, 1901 | Named General Sam Houston. Previously named Mary Ann. Colloquially known as the Green Train. Originally built as an 0-4-4T type. | |
| 2 | 0-2-2-0cog | 4'-8" | MWC | Mt Washington Cog Railway, Bretton Woods, NH | operational | Alco (Manchester), 1875 | Named Ammonoosuc. | |
| 9 | 0-2-2-0cog | 4'-8" | MWC | Mt Washington Cog Railway, Bretton Woods, NH | operational | Alco (Manchester) #45091, 1908 | Named Waumbek. | |
| 9 (616) | 0-6-0 | 4'-8½" | SMS Rail Lines (USATC) | SMS Rail Lines, Bridgeport, NJ | operational | Alco (Schenectady) #70402, 1942 | From the New Hope Railroad, New Hope, PA. Previously operated in the 1970s. Had the boiler fired up and the throttle opened with steam running through the cylinders in 2021. Restored back to operation on November 16, 2023. | |
| 7 | 0-4-0T | 4'-8½" | US Ordinance | Buckley Old Engine Show, Buckley, MI | operational | Alco (Cooke) #59402, 06/1918 | ||
| 844 (8444) | FEF-3 | 4-8-4 | 4'-8½" | UP | UP engine house, Cheyenne, WY | operational | Alco (Schenectady) #72791, 12/1944 | Featured in the TV series 'Shining Time Station'. Only steam locomotive in the United States to never be retired by a major class I North American railroad. Renumbered to 8444 from 1962 to 1989. Taken out of service in 2013. Returned to service in 2016. |
| 4014 | 48841 | 4-8-8-4 | 4'-8½" | UP | UP engine house, Cheyenne, WY | operational | Alco (Schenectady) #69585, 11/1941 | From Pomona, CA. Reacquired by the Union Pacific in July 2013. Restored to operation on May 1, 2019. Converted to burn oil. Temporarily uses the tender of UP 3985. Became the first-ever steam locomotive to be equipped with Positive Train Control. |
| 11 | 2-6-0 | 4'-8½" | Everett (Bath & Hammondsport) | Claysburg shops, Claysburg, PA | operational | Alco (Cooke) #62635, 03/1923 | Originally built for export to Cuba. From the M&NJ Shops, Middletown, NY. Sold to the Everett Railroad, Duncansville, PA. Restored to operation in October 2015. Converted to burn oil in March 2022. | |
| 148 | 151 | 4-6-2 | 4'-8½" | US Sugar (FEC) | US Sugar, Clewiston, FL | operational | Alco (Richmond) #61769, 1920 | From Zerr's Historic Steam Train LLC, near the C&O engine house, Traverse City, MI, then Monte Vista, CO. Owned by Don Shank's D&RG Historial Foundation. Restored to operation in 2020. Converted to burn waste vegetable oil. |
| 473 | K-28 | 2-8-2 | 36" | D&S (D&RGW) | Durango & Silverton, Durango, CO | operational | Alco (Schenectady) #64984, 1923 | Appeared in Love Those Trains. Damaged by a runaway truck on June 25, 1987. Converted to burn oil in late May 2021. Suffered a piston failure on September 25, 2021. |
| 476 | K-28 | 2-8-2 | 36" | D&S (D&RGW) | Durango & Silverton, Durango, CO | operational | Alco (Schenectady) #64987, 1923 | Restored to operation in 1981. Previously operated in Sep 1999. Restored back to operation in Feb 2018. Taken out of service in late Dec 2021. Returned to operation and converted to burn oil on May 25, 2022. |
| 97 (200) | 2-8-0 | 4'-8½" | Valley Railroad (B&SE) | Valley Railroad, Essex, CT | operational | Alco (Cooke) #65188, 1923 | Taken out of service in 2010. Returned to operation in October 2018. | |
| 40 | 2-8-2 | 4'-8½" | Valley Railroad (A&R) | Valley Railroad, Essex, CT | operational | Alco (Brooks) #61858, 1920 | ||
| 25 | 2-6-2 | 4'-8½" | MCR | Oregon Coast Scenic Railroad, Garibaldi, OR | operational | Alco (Schenectady) #66435, 1925 | From the McCloud Railway Co., McCloud, CA. Appeared in 'Stand By Me' (1986 movie). Taken out of service in early January 2023. Returned to operation on July 18, 2024. | |
| 20 | T-19 | 4-6-0 | 36" | RGS (F&CC) | Colorado Railroad Museum, Golden, CO | operational | Alco (Schenectady) #5007, 1899 | From Alamosa, CO. Restored to operation in July 2020. Operated at the C&TS from late August to early October 2021. |
| 1003 | L-1 | 2-8-2 | 4'-8½" | MSP&SSM | Wisconsin Automotive Museum, Hartford, WI | operational | Alco (Schenectady) #52826, 1913 | Appeared in "Extreme Steam : Classic North American Steam Locomotives". |
| 12 | 0-4-0T | 4'-8½" | Marble Cliff Quarries | Mark Acuff, N of airport, Hillsboro, OR | operational | Alco, 1918 | From Milwaulkie, OR. | |
| 11 | 0-4-0T | 4'-8½" | NMIM | Prairie Village, Madison, SD | operational | Alco (Cooke) #65274, 1924 | ||
| 19 (81) | 2-8-2 | 36" | SVRY (WP&Y) | Sumpter Valley Railway, McEwen, OR | operational | Alco (Schenectady) #61981, 1920 | Restored to operation in 1996. Taken out of service in Late September 2021. Undergoing mandated 1,472-day inspection and overhaul. Returned to operation in 2024. | |
| 20 (80) | 2-8-2 | 36" | SVRY (WP&Y) | Sumpter Valley Railway, McEwen, OR | operational | Alco (Schenectady) #61980, 1920 | Purchased by the Sumpter Valley Railroad for restoration in 1977. Retured to operation in 1996. Taken out of service in 2015. Restored back to operation in 2025. | |
| 261 | S-3 | 4-8-4 | 4'-8½" | CMStP&P | GN Shops/Minneapolis Junction, Minneapolis, MN | operational | Alco (Schenectady) #71974, 07/1944 | Restored to operation in 1993. Taken out of service in 2008. Returned to operation on December 12, 2012. Considering a possible conversion to burn oil, according to a March 2021 feasibility study. |
| 5000 | R-67a | 4-8-4 | 4'-8½" | CRI&P | Steam Railroading Institute, Owosso, MI | operational | Alco, 1929 | Tender only. Used as an auxiliary water tender for PM 1225. |
| 165 | S-34 | 0-6-0 | 4'-8½" | WP | Western Pacific Railroad Museum, Portola, CA | operational | Alco (Schenectady) #58787, 1919 | From the Pleasanton Fairgrounds, then PLA. Restored to operation on April 23, 2022. Debuted in excursion service on May 15, 2022. Currently the only operational WP steam locomotive. |
| 353 | B-4 | 0-6-0 | 4'-8½" | MSP&SSM | Western Minnesota Steam Threshers Reunion, Rollag, MN | operational | Alco (Brooks) #61760, 1920 | |
| 57 | 0-4-0T | 4'-8½" | Solvay Process Works | NE Missouri Old Threshers, Shelbina, MO | operational | Alco (Cooke) #64991, 1923 | From Leo Smasal, Sedalia? | |
| 12 (1643) | A-7 | 0-6-0 | 4'-8½" | M&NF (Southern) | Age of Steam Roundhouse, Sugarcreek, OH | operational | Alco (Pittsburg) #37672, 09/1905 | Sold in 1952 to M&NF; used in freight and tourist train service; stored in a shed at Clearfield, KY; purchased by Jerry Jacobson in 2011. |
| 3 | 2-6-2T | 4'-8½" | Robert Dollar | Niles Canyon Railway, Sunol, CA | operational | Alco (Schenectady) #67544, 11/1927 | Traded to PLA from the Western Railway Museum, Suisun City, CA. | |
| 29 | SC-3 | 2-8-0 | 4'-8½" | Grand Canyon (LS&I) | Grand Canyon Railway, Williams, AZ | operational | Alco (Pittsburg) #39637, 05/1906 | Previously operated in May 2008. Restored back to operation in late Aug 2016. Converted to burn waste vegetable oil. Taken out of service in late Oct 2019. Returned to operation on Aug 25, 2026. |