I miss Colorado too, lived there back in the 80’s, I had a Suzuki Cavalcade and I would ride the Peak to Peak highway out of Longmont, really miss that road.
I putted up to Mishwaka then hit Masonville and Horestooth lake. Nice loop but way shorter then your ride. I had to get in my range time at Great Guns too. Nice the winds held off til the evening but it's howling now.
I ride that route backwards - coming out of Denver down to woodland park. Beautiful run and sometimes it's gets good and I go south from woodland once I get there :-).havent been able to ride since September problems with fractured Femurs but another check in with the surgeon this month and I should be good to go ! Well let's be real. I'll see the surgeon and if I can hold the bike up - I'm RIDIN'.....