Amazing time. Lots of mt. Lemmon is currently restricted due to covid but there was still plenty to do!
Head up to Summerhaven 3 miles up th road to get some gifts and food at the cookie cabin (also 5 stars). It gets pretty chilly around the fall especially at night so be prepared for that. Overall we had a great experience.
Camped here in late October of 2018. You basically turn onto E. Mount Bigelow Rd, drive past the UA Observatory and start looking for a place to camp. The sites are spread out with lots of space between. Fires were aloud at the time I was there and I think you would be able to have a pet on a leash. It gets cold on the Mountain at night in October and I was not as prepared as I should have been. No bathrooms, no water, no electricity but lots of fun! Great for group camping and lots of trees for hammocks!
Just across Catalina highway from pay sites like Whitetail or Spencer Canyon, Bear Wallow offers dispersed camping for free. Pick from views to the south of Tucson, to the north and east, or camp along the creek. It’s accessible by Bear Wallow Rd or Mt Bigelow Rd from March 1 to Dec 1. Show up early as it can get crowded