The following have resided at Stone Mountain at one time, but have since moved elsewhere:
#1910, The Dinky - Originally Johnstown Traction Company number 358 built by St. Louis Car Company in 1925 as an electric streetcar.
 It was outfitted with a diesel motor when acquired by the park, eliminating the need for overhead lines.
 Now at the Trolley Museum of New York, Kingston, New York.

#51 - 25 ton diesel switcher built by General Electric for Georgia Power.
 Currently operating at the ISG Resource's concrete plant in Lakeville, Minnesota.

#42, The Mary Payne - 45 ton diesel switcher built by General Electric for the United States Marine Corps.
 Current whereabouts unknown.

#6661 - A former Chesapeake and Ohio Railroad GP9 diesel built by EMD in 1956, and later transferred to the C&O subsidiary, Baltimore and Ohio Railroad, and finally, to the Atlanta, Stone Mountain and Lithonia Railway before acquisition by the Stone Mountain Railroad.
 The 6661 was sold for scrap in late 2011.

Baggage car/tender - An EMD SW1 diesel built in 1946 as Boston and Maine Railroad #1114.
 Acquired by Stone Mountain in 1973 to assist the steam locomotives.
 Later fitted with a false baggage car shell when the railroad began to dieselize so as to make the steam locomotive placed in front appear to be pulling the train when, in fact, the diesel was actually powering the train.
 Sold in 1995 to become Standridge Color's #3 in Social Circle, GA.

#104, The General II - a former Red River and Gulf Railroad 4-4-0 steam locomotive built by Baldwin in 1919.
 Acquired from Spence's Louisiana Eastern along with number 60, both represent two of four LE steam engines still in existence.
 Withdrawn 1986 due to boiler and mechanical issues, 104 was the last engine to operate under steam at the park.
 The engine continued to occasionally "pull" the train while pushed by a diesel until 1991.
 In 2005, the engine was placed on a plinth outside the engine shed and received a new coat of paint on the sides visible to passing trains.
 The Stone Mountain Memorial Association donated the engine to the Southeastern Railway Museum in Duluth, GA in 2007, and moved to the museum the following year, where it currently resides.

#110, The Yonah II - a former McRae Lumber & Manufacturing 2-6-2 steam locomotive built by the Vulcan Iron Works in 1927.
 The engine went to the Beechwood Band Mill in Cordele, Georgia, in 1930 before being sold in 1933 to the Cliffside Railroad.
The Cliffside retired the engine when the road dieselized in 1962, and sold it the following year to the Swamp Rabbit Railroad in Cleveland, South Carolina, who sold the engine to Stone Mountain in 1969.
 First steam locomotive to be withdrawn from active service, having encountered running gear issues in 1982.
 Placed on display at the Memorial Depot in 1984.
 The Stone Mountain Memorial Association donated the engine to the New Hope Valley Railway in Bonsal, North Carolina in 2012, and the engine was moved to the railway in early February 2013.
 The New Hope Valley intends to restore the engine to operating condition, which is anticipated to take five to seven years at an estimated cost of $600,000 based on an initial survey of the engine performed in 2012.
The engine was given a cosmetic restoration and placed on display, while the railway continues to evaluate the engine's components and raise funds for operation.

#60, The Texas II - a former San Antonio and Aransas Pass Railway 4-4-0 built by the Baldwin Locomotive Works in 1923.
 Through merger, came into Southern Pacific Railroad subsidiary Texas and New Orleans.
 Paulsen Spence bought the engine for his proposed Louisiana Eastern Railroad and was sold to Stone Mountain after his death.
 Withdrawn in 1983 when it came in need of boiler work and other mechanical issues, though it continued to occasionally "pull" the train while pushed by a diesel until 2002, and remained within the rail yard thereafter.
 In 2011, the engine received a partial cosmetic restoration, including the removal of the undergrowth and repainting the portions of the engine th
The following have resided at Stone Mountain at one time, but have since moved elsewhere:
#1910, The Dinky - Originally Johnstown Traction Company number 358 built by St. Louis Car Company in 1925 as an electric streetcar.  It was outfitted with a diesel motor when acquired by the park, eliminating the need for overhead lines.  Now at the Trolley Museum of New York, Kingston, New York.
#51 - 25 ton diesel switcher built by General Electric for Georgia Power.  Currently operating at the ISG Resource's concrete plant in Lakeville, Minnesota.
#42, The Mary Payne - 45 ton diesel switcher built by General Electric for the United States Marine Corps.  Current whereabouts unknown.
#6661 - A former Chesapeake and Ohio Railroad GP9 diesel built by EMD in 1956, and later transferred to the C&O subsidiary, Baltimore and Ohio Railroad, and finally, to the Atlanta, Stone Mountain and Lithonia Railway before acquisition by the Stone Mountain Railroad.  The 6661 was sold for scrap in late 2011.
Baggage car/tender - An EMD SW1 diesel built in 1946 as Boston and Maine Railroad #1114.  Acquired by Stone Mountain in 1973 to assist the steam locomotives.  Later fitted with a false baggage car shell when the railroad began to dieselize so as to make the steam locomotive placed in front appear to be pulling the train when, in fact, the diesel was actually powering the train.  Sold in 1995 to become Standridge Color's #3 in Social Circle, GA.
#104, The General II - a former Red River and Gulf Railroad 4-4-0 steam locomotive built by Baldwin in 1919.  Acquired from Spence's Louisiana Eastern along with number 60, both represent two of four LE steam engines still in existence.  Withdrawn 1986 due to boiler and mechanical issues, 104 was the last engine to operate under steam at the park.  The engine continued to occasionally "pull" the train while pushed by a diesel until 1991.  In 2005, the engine was placed on a plinth outside the engine shed and received a new coat of paint on the sides visible to passing trains.  The Stone Mountain Memorial Association donated the engine to the Southeastern Railway Museum in Duluth, GA in 2007, and moved to the museum the following year, where it currently resides.
#110, The Yonah II - a former McRae Lumber & Manufacturing 2-6-2 steam locomotive built by the Vulcan Iron Works in 1927.  The engine went to the Beechwood Band Mill in Cordele, Georgia, in 1930 before being sold in 1933 to the Cliffside Railroad. The Cliffside retired the engine when the road dieselized in 1962, and sold it the following year to the Swamp Rabbit Railroad in Cleveland, South Carolina, who sold the engine to Stone Mountain in 1969.  First steam locomotive to be withdrawn from active service, having encountered running gear issues in 1982.  Placed on display at the Memorial Depot in 1984.  The Stone Mountain Memorial Association donated the engine to the New Hope Valley Railway in Bonsal, North Carolina in 2012, and the engine was moved to the railway in early February 2013.  The New Hope Valley intends to restore the engine to operating condition, which is anticipated to take five to seven years at an estimated cost of $600,000 based on an initial survey of the engine performed in 2012. The engine was given a cosmetic restoration and placed on display, while the railway continues to evaluate the engine's components and raise funds for operation.
#60, The Texas II - a former San Antonio and Aransas Pass Railway 4-4-0 built by the Baldwin Locomotive Works in 1923.  Through merger, came into Southern Pacific Railroad subsidiary Texas and New Orleans.  Paulsen Spence bought the engine for his proposed Louisiana Eastern Railroad and was sold to Stone Mountain after his death.  Withdrawn in 1983 when it came in need of boiler work and other mechanical issues, though it continued to occasionally "pull" the train while pushed by a diesel until 2002, and remained within the rail yard thereafter.  In 2011, the engine received a partial cosmetic restoration, including the removal of the undergrowth and repainting the portions of the engine th
Stone Mountain Scenic Railroad