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Smith Rock
The Main Area
Chain Reaction 5.12c

Chain Reaction 5.12c

4.3
(17)
No route came to represent the birth of US sport climbing more than this overhanging arete. Naturally photogenic, it made the cover of Newsweek in 1993, and supposedly inspired the artwork for the Clif Bar wrapper. After an easy start, puzzling slaps up the razor arete gives way to a heroic dyno for a jug at the roof.
Chain Reaction 5.12c, Smith Rock - Beta Video from LoganP00
Logan Perkins
@LoganP00

Recent Ascents for Chain Reaction 5.12c

KAYA CLIMBER
DETAILS
DATE
JACK WHITNEY
@JackWhitney
★ 5(5.12c, Solid)
6.22.2026
BANLU ROGAWAY
@BRogaway
(5.12c, Solid)
8.23.2025
ADAM BANKS
@AdamAB
Really stoked to climb this one. Tried it first is 2017 during a full solar eclipse. I don’t think you need a big span to climb - you can teck your way up the arete.
★ 5(5.12c, Solid)
5.1.2022
MICHAEL WOO
@mwoo
Kept blowing the move at the lip, prob did this climb 10 times before I sent. Definitely need to warm up to avoid the flash pump.
★ 4(5.12c, Hard)
4.21.2022
GRAHAM MCGRENERE
@grahammcgrenere
(5.12c, Solid)
1.26.2021
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