Re: Cumbres, April 13, 1937

>Conductor report:
Work Extra 476 called Chama 9:00 AM
1' make up train coal and water ditcher fill water car 45" wait for instructions 1'15" go to monero
6'45" roll rock load and unload with ditcher at MP 365 1/2 material for rip rap 6:45 PM to 9:30 PM back up Monero to Chama (Mclaughlin)<
Conductor report:
Work extra 375 and ditcher OX worked 5:30 AM to 8:30 PM between Pagosa and Dulce Rip Rap work loaded 9 cars rock unloaded 3 cars rock at MP 381 1/3 loaded 3 cars brush at MP 383 unloaded 3 cars brush 6 cars rock MP 386 1/2 tied up Pagosa 8:30 PM (Edmunston)<
Is there any indication on what type of cars were used to haul the rock especially given the ditcher is used to unload and what exactly does "roll rock load" mean?