If you are heading south from Walden on Colo 125
You can simply turn south from US 40 at Parshall -
And skip Kremmling altogether.
Don't know how much dirt you are willing to do - if any.
Unfortunately. for mountain Coloradoans -
The closer you are to Denver - the more you are treated as a backyard.
Since you have a big jog in the Rockies in south central Wyoming -
Which corresponds to the Great Divide basin - you have a number of choices.
I tend to ride further west in the Colorado Rockies.
There is an excellent ride from Glenwood Springs to Gunnison via Crested Butte.
(You can opt either for McClure Pass - longer - or Schofield Pass - more remote.)
(Or from Carbondale over Independence Pass to Buena Vista.)
Instead of heading east from Jackson to Rawlins -
You head south thru Pinedale to Rock Springs and Meeker.
Another possibility from Maybell is -
Steamboat, Toponas, Eagle, Leadville
If you are willing to do a couple of 20-mile dirt sections -
Your route options increase geometrically.
I haven't riden Colo 9 in years for the good reasons above.
US 24 south of Leadville has great views, but heavy traffic.
(Some sections still have no shoulders.)
Here's one of my trips - - http://www.crazyguyonabike.com/doc/page/?o=1&page_id=26411&v=Of
And the Colorado DOT traffic volume website - - http://apps.coloradodot.info/dataaccess/Traffic/index.cfm?fuseaction=TrafficMain&MenuType=Traffic
But Colo 9 - - - nah.