The North rim campground is much smaller than the South. If you travel with pets, the North rim is pretty restrictive as to where you can take them whereas the South rim area is open pretty much to pets, with the exception that pets are not allowed below the canyon rim.
The ride to the North rim campground is really nice.
Goody Two Shoes and the Filthy Beast
2008 Chevy Silverado 2500HD
Duramax and Allison 6 speed
2012 Wildcat 282RKX
You can't make things idiot proof, you can only make them idiot resistant.