Genetic Wall is the set of dark red fins/buttresses immediately below and west of Devils Thumb, just across the drainage from the Planetarium. Here you'll find a small assortment of traditional lines and a pair of hard sport routes. This crag is seldom visited despite the super short approach, generally decent rock, and nice views.

This is a great place for less-experienced folks to hone their crack-cilmbing skills. Warm up on Moderna Times (5.7), Scion (5.8), and Wavy Baby (5.9); then make your way over to the main attraction: Heirloom (5.10). Extra time calls for laps on Spicy Heirloom (5.10+) and Non-GMO (5.10-). Feeling strong? Have a go at Tyrannosaurus Runt (5.11- PG-13), which still hasn't seen a second ascent. Meanwhile, offwidthers can rack up the big cams for Acromegaly (5.9) and Mombay (5.10c).