I spent last night plotting a southern route to meet Doug in Denver. Looking for "not to be missed" roads between Taos and Boulder. My first draft is about 900 miles (two full days), spending the night in Montrose. I have not investigated all the suggestions given to Doug as I assume (perhaps wrongly) they would be focusing on the area north of Denver since that is where his route goes. I suppose I should read the threads on the national that was in Montrose (I think) several years back.
I don't have my map with me but the first half is looking like 518, 64, 84, 160, and 550 up to Montrose. The second half is looking like 50, 92, 133, 82, and then lots of squiggly lines to Boulder (suggestions welcome).
I was also considering taking 149 north to Lake City, then Cinnamon Pass and CR-2 down to Silverton. That's supposed to be amazing. I'll have 50/50 tires on the 1190 and most of it is gravel road suitable for 2WD vehicles. Cinnamon Pass itself looks rocky but not terrible. Not sure if anyone here has ridden that on a large adventure bike. From Silverton, head north to Ouray and beyond.