Since the beginning of the tourist railroad era 1960 the following classes of D&RGW engines have been operated:
C-17 RGS 42 (I dont immediately recall her D&RGW #)
C-18 #315,318
C-19 RGS 41,(I dont immediately recall her D&RGW #) D&RGW 340,346
K-27 #463,464
K-28 #473,476,478
K-36 #480,481,482,483,484,486,487,488,489
K-37 #497 (the other K-37s operated in freight service except for #490 and 496 which I recall were out of service before 1960.
It would be interesting to see a complete list of all the 36" gauge locomotives which have operated in tourist service since 1960