Boondocking? Metor Crater east of Flagstaff

Don't know for sure, but behind McDonalds in Winslow there were a few campers that looked to be overnighters. We stayed at one of the Gift shop lots at the south end of Petrified Forest NP and toured PFNP in the AM. Both have free camping spots but they are 75 minutes from Meteor.

If you want to visit Meteor Crater then stay at their RV park. Otherwise, I'd recommend Homolovi Ruins State Park in Winslow.

When will you be there? It's hot in summer so you may want electric. You could also stay in cooler Flagstaff and do a day trip to Meteor. Bonito national forest campground at the entrance of Sunset Crater Nat'l Monument is a beauty. No reservations though so you need to be there in the morning when folks move out. It's a favorite of ours.

There is a CG right where you turn to go to the crater. With the cost of fuel as it is a CG won't cost more than running the genny.

This link may show you a few spots. I have stayed at the cinder Hills ORV area north of 40 East of 89 on 776.