Campgrounds and forest service disbursed camping areas are full across this country. Camper sales outpaced any previous year and smaller units sold out early.
One issue in Colorado is that people believed the sales person and auto manufacturer. A 6 cylinder engine may be listed to tow 5,000 - 7,000 pounds and I have seen some of these at 10,400' camped in Leadville, Co. Yesterday a local tow truck driver said he sees a lot of these larger trailers being towed by smaller cars alongside the road because of overheating and inadequate transmission coolers.
For myself and camping friends we recommend towing a trailer that is 1/2 the auto dealer's recommended maximum. I consider the proper hitch with a sway bar a necessity. Of course we routinely tow on highways and byways over 10,000'. Stay low and slow and you should be good.