April 20 1941

Perhaps the latest in the spring the D&RGW operated a rotary. Probably only Jerry Day would know.

April 20, 1941 (Sun.) Rotary OM, with 485-476, operate Chama to Alamosa.
Chama extra east, engines 485 and 476, rotary OM, to Alamosa after Cumbres Big Horn turn
Conductor Ashbrook (0517)
Engine 485 Nissen
Engine 476 Donaldson
Rotary OM engineer Turney
Rotary OM pilot Tozer
Depart Chama 2:55 AM
Arrive Cumbres 4:30 AM, 50 minutes water and flange storage
Depart Cumbres 5:20 AM
Sublette 1 hour meet extra 481-483 west (18 loads, 0 empties, caboose 04343) and No. 115
Arrive Big Horn, appears to read 9:37 AM, 15 minutes turn
Depart Big Horn 10:02 AM westbound
Arrive Cumbres 12:30 PM, 30 minutes clear passing siding and east leg of wye, turn
Depart Cumbres 1:00 PM, eastbound
Arrive Alamosa 5:45 PM

Info from dispatcher train sheets (Jimmy Blouch) and Cumbres train register.