This ride report from 2011 shows a lot of the stuff to the west that we found just by cruising around looking for stuff...
https://bayarearidersforum.com/forums/showthread.php?t=366429
One thing, though...if it's wet, stay out of the middle! The territory between Soda Lake Road and Elkhorn Rd can get really nasty when it's wet and you'll never make it out of there. I've seen the BLM trucks get stuck out there after trying to rescue members of the public after they've gotten stuck. It's serious business.
At another point, we used my bike to tow my buddies bike out of the mud (tow-strap FTW!)
Eventually, there was probably 40LBs of mud on each bike, plus another 10 on each rider.
True adventure KLR
Final mud hole: