You got it, George, with the little extra of having rights over the scheduled freight, No. 11, between Mancos and Glencoe. The ruling grade from Dolores, MP 103, to Millwood Summit, MP 115, was 2.5% but it wasn't really encountered until you got to Glencoe, MP 111. The one C-16 could handle the mixed to Glencoe but would need a helper from there to Millwood.
Both sides of Cima Summit were pretty consistent 2.5% so they would need to doublehead all the way from Mancos, MP 122, to Cima, MP 142.
This order not only gives great insight to the operations but it neatly reflects the use of leased D&RG power at the time as well. The RGS would have had 13 engines in 1921 (C-16-60's 3, 6, 10, 12, 15, 16 and 17; T-19-85's 20, 22 and 25; C-19-70's 40 and 41; C-17-70 42). With two scheduled passenger trains, two scheduled mixed trains and four scheduled freights, there would certainly be need for some outside help!