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Aspen Trail Boulders

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

Aspen Trail Boulders Rock Climbing 

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Administrators: Greg Opland, James DeRoussel, JJ Schlick, Hendrixson, Kristine Hoffman (sitewide)
Submitted By: JesseJ on Sep 13, 2009


52° | 36°
Thanksgiving Day

46° | 35°

45° | 35°

45° | 32°

43° | 30°
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Jesse Johnston trying the crux move on Odin's Reve...


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 4.1 miles from here

87 Total Climbing Routes

['4 Stars',0],['3 Stars',12],['2 Stars',23],['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:
The Brute   V6 7A     Boulder   Gandalf's Gorge : The Dragon's Den
Civil War   V6 7A     Boulder   Gandalf's Gorge : The Dragon's Den
Odin's Revenge   V9-10 7C+     Boulder   River Boulder
Browse More Rock Climbing Classics in Aspen Trail Boulders

Featured Route For Aspen Trail Boulders
Rock Climbing Photo: The feature

The Lost World V9-10 7C+  AZ : Mount Lemmon (Santa Catalin... : ... : River Boulder
Begin on the sloping pod of Odin¬ís Revenge and traverse the lip leftward on sloping holds into 'V4'. High water levels render this problem unworkable for significant portions of the year. Number 5 on the picture topo...[more]   Browse More Classics in AZ

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Rock Climbing Photo: fall
Rock Climbing Photo: fall

Comments on Aspen Trail Boulders Add Comment
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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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