Any riders interested in ride-sharing from Tucson to Flagstaff and back to do 3-4 days around the Craters & Cinder Cones Loop some time in June? It's a shakedown trip for a possible July GDMBR southbound tour.
I'm having trouble finding buses taking reservations due to COVID, so renting a car is an option.
https://www.bikepackingroots.org/craters-and-cinder-cones.html