Ordered by the number of ascents recorded.
| Climb Name | Type | Grade | # Ascents Recorded | Notes | Exclude Reason |
|---|---|---|---|---|---|
| Under the Bridge | Boulder problem | 8B+ | 1 | ||
| Under The Wagon | Boulder problem | 9A (approx) | 1 |
Moving the wagon reveals this true sit start project to Off the Wagon. |
|
| Undertow | Boulder problem | 8B | 1 | ||
| Undertow | Trad climb | E7 | 1 | ||
| Underworld | Boulder problem | 8A | 1 | ||
| Underworld | Sport route | 7c+ | 1 | ||
| Unfinished Symphony | Sport route | 8b+ | 1 |
Currently finishes in the middle of the wall. The true finish is a very hard project. |
|
| Unforgiven | Boulder problem | 8B | 1 | ||
| University Wall | Trad climb | E6 | 1 | ||
| Unjust | Boulder problem | 6A+ | 1 | ||
| Unknown Stones | Trad climb | E9 | 1 |
The line between Appointment with Fear and Appointment with Death. |
|
| Unkochinchin | Boulder problem | 8A+ | 1 | ||
| Unnamed | Boulder problem | 8C | 1 | ||
| Unraveled | Boulder problem | 8B | 1 | ||
| Unrepeatable | Boulder problem | 7B | 1 |
A classic modern friction slab. After flashing the first ascent, Nathan Phillips was unable to repeat the climb. |
|
| Unrighteous Doctors | Sport route | 7c+ | 1 | ||
| UP 40 | Trad climb | E4 | 1 |
Joshua Tree |
|
| Upgrade U | Boulder problem | 8C | 1 |
Named after the song of the same name by Beyonce. References[1] http://datenbank.boulderrausch.de/viewtopic.php?f=63&t=2153&sid=c1aae3739c58d8f38741f0ce922423de |
|
| Up Hellya | Trad climb | E8 | 1 | ||
| Upping the Ante | Trad climb | E5 | 1 |