This wall has two really fun (although short) sport climbs and a couple of highball boulders or heady trad leads. The rock is very reminiscent of granite you might see in Joshua Tree with its bullet hard stone, sharp crimps, and smeary feet. This wall will feel much better with colder temps or shade, and is in the shade in the afternoon. Postcolonial Crag was originally put off from bolting for years because of attempts to boulder the routes, but high and difficult cruxes on both The Marble Man and Stonewall proved to be better suited as sport routes.
Approach: Park in the large pullout on the south (left) side of the road 1.9 miles up the canyon at a big curve. Walk across the road to find a faint trail with a small cairn that switchbacks up steep and sometimes loose terrain. Be very careful not to kick off any rocks that might hit the road. You can see the small wall up the hill from the parking area, use that as a reference because the trail is often hard to follow.