So the info on Dyrt and the parks website in inaccurate. There are 35+ first come first serve tent spots (none of which have water as of May 2024) and 10 ish RV spots on a separate loop, only 2 of which are first come first serve and electric only - all the rest are reservation only...

The tent spots aren't accessible with anything bigger than a regular car/SUV - class B with an experienced driver and short wheel base might be able to fit, no way a class C would. No way a trailer (even a teardrop) would fit in the parking spots for tent spots if you strike out on the RV spots.

The drive up is GORGEOUS and almost worth it regardless of camping, and super convenient to downtown Santa Fe, but if you're in a RV have your water straight and HAVE A RESERVATION! We ended up just parking in a trailhead parking lot (that said no camping) and rolled the dice (successfully).