Park at the "Membrane" 3.9 miles up canyon. Cross the river as if you were going to the "Membrane" Walk up hill to your left about 50 or 60 yards until a small enclosure is reached. The climbs here are about 30-40 feet.
Mountain Project's determination of some of the classic, most popular, highest rated routes for Isolation Wall:
Exile (11d), Harder than it looks. Intriguing combination of sublime slopers and funky pinches. Stick clip the first bolt if you are at all timid. I started this route the same way you would start Wilderness. This route is harder than License to thrill(11c at membrain) and easyer than Wilderness(12a/b one route to the left). I call it 11d, and I give it 2 out of three stars. It is a great route to do after License to thrill but before moving on to the harder crimps of Wilderness. Great addition to the wall!