The Santa Fe operated a large and varying fleet of steam locomotives.
Among them was the 2-10-2 "Santa Fe", originally built for the railroad by Baldwin Locomotive Works in 1903.
The railroad would ultimately end up with the largest fleet of them, at over 300.
Aside from the 2-10-2, Santa Fe rostered virtually every type of steam locomotive imaginable, including 4-4-2 Atlantics, 2-6-0 Moguls, 2-8-0 Consolidations, 2-8-2 Mikados, 2-10-0 Decapods, 2-6-2 Prairies, 4-8-4 Northerns, 4-6-4 Hudsons, 4-6-2 Pacifics, 4-8-2 Mountains, 2-8-4 Berkshires, and 2-10-4 Texas.
The railroad also operated a fleet of heavy articulated steam locomotives including 1158 class 2-6-6-2s, 2-8-8-0s, 2-10-10-2s, 2-8-8-2s, and the rare 4-4-6-2 Mallet type.
The Railroad retired its last steam locomotive in 1959.

During the twentieth century, all but one of these was painted black, with white unit numbers on the sand domes and three sides of the tender.
Cab sides were lettered "AT&SF" when operated in most parts of Texas, and "AT&SF" otherwise, also in white.
The subsidiary Gulf, Colorado and Santa Fe often painted all or part of the smokebox (between the boiler and the headlight) white or silver.
In 1940, the circle and cross emblem was applied to the tenders of a few passenger locomotives, but these were all later painted over.
After World War II, "Santa Fe" appeared on tender sides of mainline road locomotives in white, above the unit number.
Locomotives were delivered from Baldwin with white paint on the wheel rims, but the road did not repaint these "whitewalls" after shopping the locomotives.
After World War II, side rods and valve gear were painted chrome yellow.
For a short time, Pacific types 1369 and 1376 were semi-streamlined for "Valley Flyer" service, with a unique paint scheme in colors similar to those used on the new passenger diesels.
More unique was the two-tone light blue over royal blue scheme of streamlined Hudson type 3460.

While most of the Santa Fe's steam locomotives were retired and sold for scrap, a handful were saved and a few ended up as notable locomotives.
Among them is Santa Fe 3751, a 4-8-4 Northern type, built by Baldwin in 1927, was once on display at Viaduct Park near the AT&SF depot in San Bernardino, California.
The locomotive was moved out of the park in 1986 to be restored and after almost 5 years of restoration, 3751 made its first run on a 4-day trip from Los Angeles to Bakersfield and return in December 1991.
The trip marked the beginning of 3751's career in excursion service.
The more-modern Santa Fe 2926, another 4-8-4 delivered by Baldwin in 1944 and based in Albuquerque, New Mexico, is being restored for operation by the New Mexico Steam Locomotive and Rail Historical Society of Albuquerque, which has expended 114,000 man-hours and $1,700,000 in donated funds on her restoration since 2002.
The Santa Fe operated a large and varying fleet of steam locomotives. Among them was the 2-10-2 "Santa Fe", originally built for the railroad by Baldwin Locomotive Works in 1903. The railroad would ultimately end up with the largest fleet of them, at over 300. Aside from the 2-10-2, Santa Fe rostered virtually every type of steam locomotive imaginable, including 4-4-2 Atlantics, 2-6-0 Moguls, 2-8-0 Consolidations, 2-8-2 Mikados, 2-10-0 Decapods, 2-6-2 Prairies, 4-8-4 Northerns, 4-6-4 Hudsons, 4-6-2 Pacifics, 4-8-2 Mountains, 2-8-4 Berkshires, and 2-10-4 Texas. The railroad also operated a fleet of heavy articulated steam locomotives including 1158 class 2-6-6-2s, 2-8-8-0s, 2-10-10-2s, 2-8-8-2s, and the rare 4-4-6-2 Mallet type. The Railroad retired its last steam locomotive in 1959.
During the twentieth century, all but one of these was painted black, with white unit numbers on the sand domes and three sides of the tender. Cab sides were lettered "AT&SF" when operated in most parts of Texas, and "AT&SF" otherwise, also in white. The subsidiary Gulf, Colorado and Santa Fe often painted all or part of the smokebox (between the boiler and the headlight) white or silver. In 1940, the circle and cross emblem was applied to the tenders of a few passenger locomotives, but these were all later painted over. After World War II, "Santa Fe" appeared on tender sides of mainline road locomotives in white, above the unit number. Locomotives were delivered from Baldwin with white paint on the wheel rims, but the road did not repaint these "whitewalls" after shopping the locomotives. After World War II, side rods and valve gear were painted chrome yellow. For a short time, Pacific types 1369 and 1376 were semi-streamlined for "Valley Flyer" service, with a unique paint scheme in colors similar to those used on the new passenger diesels. More unique was the two-tone light blue over royal blue scheme of streamlined Hudson type 3460.
While most of the Santa Fe's steam locomotives were retired and sold for scrap, a handful were saved and a few ended up as notable locomotives. Among them is Santa Fe 3751, a 4-8-4 Northern type, built by Baldwin in 1927, was once on display at Viaduct Park near the AT&SF depot in San Bernardino, California. The locomotive was moved out of the park in 1986 to be restored and after almost 5 years of restoration, 3751 made its first run on a 4-day trip from Los Angeles to Bakersfield and return in December 1991. The trip marked the beginning of 3751's career in excursion service. The more-modern Santa Fe 2926, another 4-8-4 delivered by Baldwin in 1944 and based in Albuquerque, New Mexico, is being restored for operation by the New Mexico Steam Locomotive and Rail Historical Society of Albuquerque, which has expended 114,000 man-hours and $1,700,000 in donated funds on her restoration since 2002.
Atchison, Topeka and Santa Fe Railway