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Unknown 5.10+

5.10+, Sport, 90 ft,  Avg: 2.4 from 13 votes
FA: Duane Anderton
Utah > Wasatch Range > American Fork C… > Hard Rock
Access Issue: Located in a National Forest Fee Area Details


A somewhat-intimidating-looking jug haul on broken-appearing rock that climbs through two roofs.

Begin either from a comfortable belay position at the base of the cliff or from an okay ledge about 20 feet up (the ledge can be reached by scrambling past two bolts on 3rd or 4th class terrain, or by walking left, up a scree slope, and approaching from the left).

Once at the ledge, clip a bolt that is about chest-high on the arete to the right. Find pockets and sidepulls and continue up and over the first roof.

Take the left of the two bolt lines that are before you, figure out a blank-looking section and then climb up to and through the larger roof. If you aren't using jugs, you're not looking hard enough.


Starts to the left of a rounded buttress with two bolted routes (Unknown 5.9 and Unknown 5.10a).

Shares the start with Unknown 5.10c

Approach as to Hard Rock Wall, when you get to the top of the slope, head left to new Hard Rock West area. Continue west past the terraced area to newer climbs.


About 9 bolts, or 11 bolts counting the two bolts on the lower-angled terrain. (Forgot to count them, so don't rely on this for the precise count.)

Comments [Hide ALL Comments]

Perin Blanchard
Orem, UT
[Hide Comment] When I was first told about this line I was told it is a 5.11a. I thought the first roof was the hardest part, so if that's true, it can't be any harder than the line with which it shares the start (Unknown 5.10c).

Be a bit wary of this line. At some point some of the upper roof is going to come off. It seems fairly solid now, but is hollow-sounding when you hit it with your hand. You don't want to be around if it decides to take flight. Sep 29, 2011
Stan Pitcher
[Hide Comment] Totally agree about that block - perfect freeze/thaw accident waiting to happen. Wonder if pouring some glue in there could stop the inevitable for awhile anyway? Dec 4, 2012
Aaron Shields
Lehi, UT
  5.10c/d PG13
[Hide Comment] Great climb, but agree that it's not tougher than 5.10c/d. Psychologically, this climb is tough because of the loose stuff. Most of the upper roof is due to come down any time now; it felt pretty loose, and I wasn't thrilled about using it. If you climb this, put your belayer at the bottom, under the 5.4 scramble so they have more protection and some time to react. When it does come off, maybe it will be 5.11a. Aug 2, 2013
Dillon Vesper
  5.10c PG13
[Hide Comment] great climb, little sketchy with the loose rock but some awesome exposure here! looks harder than what it really is, after pulling that first roof its smooth sailing to the top!' Nov 16, 2013
Ryan Arnold
  5.10c PG13
[Hide Comment] Gets PG-13 from me until someone takes a crowbar to that torso-sized block on the upper roof. Funner route than I expected. Mar 10, 2014
Stan Pitcher
[Hide Comment] PG-13? How about X? That thing could coming off would be bad news! Climbed it again yesterday and kicked it a bit on the way down, seemed relatively solid but very worrisome to me. Mar 10, 2014