Further along the road was a small Border Patrol check station right on the boundary of Anza-Borrego Desert State Park - the largest state park in California.
The original 'plan' had us going quite a ways further north, to camp in the Blair Valley, near the site of the Marshall South homestead. But, by checking every side road we came to, we found a spot that ranked high on the scale, and there was no reason to go further.
Some nice big old trees provided a wind break, pivacy, shade, and a place to hang the hammock!
We discovered that there is a very large, salty body of water just west of San Diego, so we can't go any further in that direction. Guess we'll just have to head back a bit east and see where we end up!