As you drive west up the canyon, you'll notice a short, dome-shaped wall on the south side of the road just before Little Eiger and Rainy Day Rock. This is the Shield. This isn't a destination wall, but it does offer a few short routes in the shade with a short approach. It faces north and gets an abundance of shade.
Approach: Park on the north (right) side of the road 4.4 miles up the canyon. This is just past the bridge that is shortly after the 267.5 milemarker sign. Take the trail on the left side of the road near the bridge (east of the Little Eiger trail). Follow the creek-side trail for a few hundred yards downstream (going past Rainy Day Rock) before seeing the cliff uphill to the right. Scramble through the loose, bushy hillside to the base of the crag. There is not a clear, visible trail up to the cliff.