Boulders is my #2 most despised/hated offroading area in AZ that I have attempted to ride on. It's very whooped-out and is dominated by M/C width trails.
I don't know why you chose this area or what your goals are, and I believe you are from California, but I would recommend the Wickenburg Box Canyon area as a more fun place to ride. You can also find places to either detour around Box Canyon, or rise up out of it to the north and east, and explore the desert all the way out to Stanton AZ. I'm not sure how much time you have to study the maps, but I learned all the best riding routes through lots of trial and error.
Back to Lake Pleasant if you're not interested in Wickenburg Box Canyon, there's always Castle Hot Springs Road and Cow Creek Road, where you will see many other riders.