I finally stumbled on to a little more paperwork regarding this subject.
Locomotives Leased From The D&RGW Nov. 30, 1929
169 Passenger Service
454 freight Service
455 "
457 "
458 "
460 "
463 "
Locomotives Leased From The D&RGW Jan. 30, 1930
169 Passenger Service Durango-Rico
175 Passenger Service Ridgway-Telluride
As soon as the stock rush was over all superfluous Rio Grande power was returned by Miller and the shoestring operation had begun.