Aztec Ruins National Monument in Aztec is nice for an afternoon. Not sure if there is camping there, though.
Most of the land in NW New Mexico is Navajo Nation. There is some great trails and, probably camping, north of Farmington and North and East of Aztec.
If I had the choice I would head back through SE Utah. Warmer, more to see, etc.
Looks like it's warming up anyway. I was at my sons soccer games last weekend in Farmington and it was cold.
I find your lack of faith disturbing.