FYI on the Glenwood Springs part, as I'm typing this from Glenwood Springs...
If you need to tow through Glenwood Springs heading south towards Aspen, I would avoid the main route (exit 116) that goes through the main part of town. It really is a nightmare with the new bridge construction going on and two very narrow lanes each direction over the very old bridge. Multiple trips over that bridge without my TT and many times people are on the center double yellow lines making it even more narrow. That and the stop and go traffic through that section, people getting tickets for blocking intersection traffic... just avoid it.
A much preferred route would be to take Exit 114 (1 exit west of GS main exit) and then head south under I70 onto Midland Ave. Take Midland Ave south until you come to the round-a'bout at 27th Street. 27th Street will lead you back to Hwy 82 where you can continue south towards Aspen.