Stickman I've hunted Rabbits there often. There aren't many, or weren't at times. Life cycle and all. The river bed holds a few, yet they're tough to jump. We usually walked North toward the pass. The terrain is more Rabbit friendly. The area to the East, where the Pepper Tree grove sits is off limits to hunting, yet if you walk in early enough in the morning you'll find Rabbits enjoying breakfast on the buds in the grass. Go on up and over the pass. It's a long walk but there are usually a few creeping around in mid-day. Once it warms up try calling Coyotes. You can see them coming from a long distance at the top of the pass. Often in family groups.
Unless the regs have changed at San Jacinto WA, you can't hunt yotes or bobcats there. We've been hammering Tom the manager for years to allow it but he won't budge. And I've seen some nice yotes out there dove and duck hunting.
Stickman, check out Jackrabbit Trail Rd which is just east of San Jacinto WA, it's an old road the goes from near the concrete plant on Gilman Springs Rd. northeast to almost I-10, the road is gated off there. There are a bunch of hills in there with mostly cottontails.
There are some other places near there you can hunt if they haven't posted it yet. Ask around if you see any farmers out or DFG peeps.