We tow our 5th wheel through the Rockies all Fall for the past several years as my son races mountain bikes in the high school NICA mountain bike league. Last week the race was in Grandby. We boondocked near Frasier. It snowed on us Friday night. They delayed the race for Sat by an hour. Sundays races were under beautiful Colorado blue skies. We will head to Nathrop this weekend for the MacMurry Ranch race. There is snow in the mountains today. Suppose to clear out tomorrow and be nice this weekend. That's the beauty of Colorado, it usually clears up quick. Get out there and have fun, watch the weather and plan accordingly. Make sure your propane is topped off. I'm with 4runnerguy. The Salida area is a good bet for late Fall boondocking. I've been there several times as late as mid November.