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Aspen Trail Boulders

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Assassin's Cradle, The 
Gandalf's Gorge 
Mango Boulder 
Peter's Cluster  
River Boulder 
Roadside Boulder 
Ronald's Chasm 
Slate Boulder, The 

Aspen Trail Boulders Rock Climbing 

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Location: 32.43506, -110.74318 View Map  Incorrect?
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Administrators: Greg Opland, Luke Bertelsen, JJ Schlick, Kristine Hoffman (sitewide)
Submitted By: JesseJ on Sep 13, 2009
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From Tyler McMillen's Tucson Bouldering:

The Aspen Trail boulders are great for summer bouldering, probably the best in town. A good summer day can be had by climbing at the AM/PM Wall in the morning, heading over to the Mango Boulder in the afternoon, and finishing the day off at the River Boulder. This will keep you in the shade all day.

If you haven't been to this area of Mount Lemmon yet, it's well worth the trip. Beautiful area, a stream, trees, and lots of bouldering potential, in addition to what has already been documented.

Again, if anyone else has route or area info that can provide more details, names, ratings, etc., please contribute what you can.

Getting There 

Drive to the end of the road past Summerhaven (Summerhaven Road). Park there. All three walls are within 15 minutes hike of the parking lot.

Climbing Season

Weather station 1.9 miles from here

100 Total Climbing Routes

['4 Stars',1],['3 Stars',23],['2 Stars',26],['1 Star',31],['Bomb',1]

Classic Climbing Routes in Aspen Trail Boulders

Mountain Project's determination of the classic, most popular, highest rated climbing routes for Aspen Trail Boulders:
Civil War   V6 7A     Boulder   Gandalf's Gorge : The Dragon's Den
The Brute   V6 7A     Boulder   Gandalf's Gorge : The Dragon's Den
Indian Summer Stand   V9 7C     Boulder   Gandalf's Gorge : The 8B Boulder
Odin's Revenge   V9-10 7C+     Boulder   River Boulder
The Lost World   V10-11 8A     Boulder   River Boulder
Browse More Rock Climbing Classics in Aspen Trail Boulders

Featured Route For Aspen Trail Boulders
Rock Climbing Photo: beta

Indian Summer V11-12 8A+  Arizona : Mount Lemmon (Santa Catalin... : ... : The 8B Boulder
Begin standing on good feet with your right hand on the lower of two flat underclings and a left hand sidepull. Bump right into the higher undercling and continue long moves on incuts and edges up a striking face. Beginning from a SDS alleviates some difficulty, but is permissible.Recommended....[more]   Browse More Classics in Arizona

Photos of Aspen Trail Boulders Slideshow Add Photo
Rock Climbing Photo: fall
Rock Climbing Photo: Jesse Johnston trying the crux move on Odin's Reve...
Jesse Johnston trying the crux move on Odin's Reve...

Comments on Aspen Trail Boulders Add Comment
Show which comments
By Matt Fowls
From: Tucson, Arizona
Apr 19, 2014
Please post any relevant history, info, etc. and I can update accordingly. These are the lines my friends and I have climbed over the past few years, and I thought I'd post them. A more comprehensive guide to the bouldering in southern Arizona can be found at

The color code for the topos is as follows:

VB-V2: Green
V3-V5: Blue
V6-V9: Orange
V10-Above: Red
Project: Yellow

Grades are proposed as a range of two (possibly three) in order to accommodate the lack of consensus on nearly all of the problems. They will be edited from time to time as to reflect the opinions of those successful in repeating the problems.
By Alex McIntyre
From: Tucson, AZ
Apr 29, 2014
Thanks for taking the time to document these boulders Matt! The pool of known bouldering in Tucson is finally expanding and gaining in quality. Psyched to get out here with you!

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