Yeah, I don't know how you're set up, or who you would go wheeling with, but there is a great trail east of Blythe called Fistfull of Dollars. You get off of I10 on the Tom Wells Rd exit and go south on the dirt road bearing SE to one of the big canyons in the ridge to the east. I've been there and run it twice, but it would be hard to explain exactly how to get to it. It's a hard rock crawling trail, with plenty of great obstacles, the coolest one is called the Good, the Bad, and the Ugly.....three choices of lines on a big ledge that crosses the whole canyon.
Parker also has a bunch of good trails, and the Desert Bar. In Parker, all trails lead to the Desert Bar. It's open noon to dark on Sat and Sun, and has live entertainment, a pretty cool place.