Mountain Project Logo

Routes in Arco Iris

Positive Affect T,S 5.12a 7a+ 25 VIII+ 25 E5 6a
Type: Trad, Sport, 3000 ft, 19 pitches, Grade V
FA: Drew Smith and Chance Traub
Page Views: 3,389 total, 63/month
Shared By: Dizzle on Jun 17, 2013
Admins: Tony Yeary, Daniel Seeliger

You & This Route

1 Opinions

Your To-Do List:

Add To-Do

Your Star Rating:

     Clear Rating

Your Difficulty Rating:

-none- Change

Your Ticks:

Add New Tick


We took six weeks to clean and open Positive Affect on the south face of Arco Iris. Five pitches are 5.9 or easier, it has five pitches of 5.10, eight pitches of 5.11 and one unforgettable 5.12 pitch.
Positive Affect follows dihedral systems with delicate foot work and stemming along with varied crack systems that lead you to the steeper upper section of the route. The crux is pitch 18 a vertical dihedral starting with a finger crack then moving into 40 meters of sustained stemming with plenty of exposure below. The 5.12 pitch has 12 bolts and can be climbed going from bolt to bolt.
The route was named after Jen Dinaburg, Traub’s late wife who passed away from adrenal cancer in April of 2012.

For Pictures and pitch descriptions visit

Watch this video of establishing Positive Affect


Find specific approach and decent beta in the refugio


All 19 pitches are equipped with 2 stainless steel Fixe hangers with rappel rings. The gear recommended is doubles from micro cams up to a #4 BD Camalot
Single set of micro stoppers and medium stoppers
12 draws
Optional #5 BD Camalot for pitch 17
Great work on this line! Jan 1, 2016
Great video and route guys!!! I'm psyched to get down there Mar 10, 2014