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Arroyo Seco Boulders

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Bridge Boulder 
Canyon Crest Road Boulder 
Hillside Boulder 
Roadside Boulder  
Upper Stream Boulder 
Wall Boulder 

Arroyo Seco Boulders Rock Climbing 

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Elevation: 1,500'
Location: 34.1932, -118.1687 View Map  Incorrect?
Page Views: 9,315
Administrators: jt512, M. Morley, Adam Stackhouse, Salamanizer suchoski, Justin Johnsen, Vicki Schwantes, Kristine Hoffman (sitewide)
Submitted By: Tristan Burnham on Aug 31, 2011
You & This Area
Best climbs for YOU in this area
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BETA PHOTO: The top left is the Bridge Boulder, Then below tha...


There are 3 boulders in this area. There might be some more further up stream but I’ve just found 3 so far. 2 are pretty close to each other and 1 is down a different stream. The boulders are granite and are pretty featured. Some holds polished smooth, but most are pretty rough. The boulders are nothing special, but cool if you live near by and want to take a hike after work and get a few short laps in.

Getting There 

The closest city is Altadena. From the 210 near La Canada and Pasadena exit Arroyo Blvd/Windsor Ave, head north towards the mountains, go about 1 mile and park on the left in the small lot just before the gate and where the road turns right. (Right by JPL). This is a popular parking lot for hikers and mountain bikers and you do not need a forest adventure pass.

For the Bridge Boulder and Wall Boulder
From the parking lot after about a mile of walking the asphalt turns to dirt and splits into a Y near some buildings. Stay to the left. Hike another 1/4 mile to the wall boulder on the right or hike another 1/4 mile past that and cross over the second bridge and go down to the boulder about 10 feet on the left.

For the Canyon Crest Boulder You can approach this 2 ways.
From the JPL parking lot walk 3/4 a mile then turn right up the first stream. Then hike about another 1/2 mile crossing the stream several times and then you’ll see the boulder on the left side.

Or the lazy way, exit the 210 at Windsor, Right on Woodbury, Left up Lincoln, then turn left on Canyon Crest. Go about 1/2 a mile and park in a small turn out on the left or right. Then walk down into the canyon and downstream and you’ll see the boulder.

Climbing Season

Weather station 2.0 miles from here

18 Total Climbing Routes

['4 Stars',0],['3 Stars',10],['2 Stars',4],['1 Star',2],['Bomb',0]

Classic Climbing Routes in Arroyo Seco Boulders

Mountain Project's determination of the classic, most popular, highest rated climbing routes for Arroyo Seco Boulders:
Deadshot   V1 5     Boulder, 8'   Bridge Boulder
Clayface   V2 5+     Boulder, 12'   Canyon Crest Road Boulder
Madone   V2 5+     Boulder, 10'   Bridge Boulder
Black Mask   V2 5+     Boulder, 9'   Bridge Boulder
The Lost Gem   V3 6A     Boulder, 15'   Upper Stream Boulder
Hush   V4 6B     Boulder, 8'   Bridge Boulder
Scrubbed Thin    V6 7A     Boulder, 15'   Upper Stream Boulder
Browse More Rock Climbing Classics in Arroyo Seco Boulders

Featured Route For Arroyo Seco Boulders
Rock Climbing Photo: "Scrubbed thin" V6 on the left, "th...

Scrubbed Thin V6 7A  California : Los Angeles Basin : ... : Upper Stream Boulder
when facing the thin face, it is the left most problem to date, start with thin hands and ft, bumping the left foot to a polished dish, left hand moves to the undercling, stand up on the left foot and go from there, Top Out Over The Peak...[more]   Browse More Classics in California

Photos of Arroyo Seco Boulders Slideshow Add Photo
Rock Climbing Photo: Wall Boulder
Wall Boulder
Rock Climbing Photo: The Bridge Boulder, Wall Boulder, and Canyon Crest...
BETA PHOTO: The Bridge Boulder, Wall Boulder, and Canyon Crest...

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