Sledge Hammer
Yucca Valley, California
Aftershock is a fun but difficult rock crawling trail. The trail is not as hard as the Hammers but harder than almost anything else most have tried. The trail is a narrow canyon with waterfalls, giant boulders, and soft sand to mix things up. Be ready for some body damage and breakage because, like most of the other Johnson Valley trails, this one isn't forgiving.