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Sonic Boom
5.10-,
Trad, Sport, TR, 75 ft (23 m),
Avg: 3 from 65
votes
FA: Viktor Kramar, Ben Stanton
Washington
> Central-E Casca…
> Leavenworth
> Icicle Creek
> Lower Icicle Ca…
> Trundle Dome
A pair of golden eagles regularly nest on Bridge Creek Wall. When in effect, starting January 1, PLEASE DO NOT CLIMB or travel within 1/2 mile of Bridge Creek Wall. As a reference, the climb Condorphamine Addiction is just outside of this 1/2 mile buffer, and is OK to climb still. The closure extends through August 15, but there is active monitoring to determine if the seasonal closure can be lifted earlier.
In 2014, there was an active pair of peregrine falcons at Snow Creek Wall, but no official closure was put in effect due to the location of the falcons. The site will be continually monitored with changes or removal of closures updated as necessary.
Description
An hard, bouldery start leads to easier climbing up a flake followed by a small roof at the top.
[Hide Photo] The roof crux move (I can see how if you're shorter it's tough to reach a hold). There's a bolt right at the roof so it's well protected.
[Hide Photo] The 10b boulder move. The variation to the left keeps the route at 5.9ish
[Hide Photo] The slabby crux. Even at 5'10", I struggled to clip the first bolt (and then after trying to get past the first bolt I fell so I wouldn't recommend just going for it if you can't clip it first).
[Hide Photo] This photo was taken from the base of "Flake Fest" just to the left of Sonic Boom. You can see the wear pattern along the flake/crack in this photo where Sonic Boom climbs. The start of the route i…
[Hide Comment] There are some bolts that make it much easier to start about 4 feet left of the original start, much more in keeping with the rest of the route.
Oct 28, 2013
[Hide Comment] This route is a ton of fun. The start can feel a bit spicy since you'll take a pretty bad tumble if you fail to get to the first bolt. I'm 5'10'', and I was able to comfortably clip the first bolt before working the sequence leading up to the next bolt. This initial section felt like 10a/b given that it was slightly thin, but the rest felt like 5.8/5.9.
The mini-roof at the top can be protected by a #1 C4 before standing up to clip the bolt on the face above the roof.
All-in-all, great variety, and a lot of fun.
Jun 20, 2014
[Hide Comment] Gear: Singles of #0.3-0.5, no real place for bigger stuff. 2 bolts at start, one bolt at roof near end.
Start: If you can't reach the first bolt before pulling the slabby move, do the alternate left start. A fall right around the first bolt is likely and would be bad if you can't reach to clip it first (it was a stretch even at 5'10" to reach it).
Nov 11, 2020
[Hide Comment] Definitely agree with clipping the first bolt of Sonic Fest and then traversing right is most in keeping with the difficulty and flow of this climb. TR'd the crux on lower which is how I would suggest anyone under 5'11" attempt this. It's also completely out-of-character with the rest of the climb. The upper crux is a bit tricky - the weakness seems to want to take you one way, but there is an easier (5.8 instead of 5.10-) way of doing it. Slightly run-out but easy from here to the anchor.
Jul 20, 2021
Access Issue: Seasonal Raptor Closures
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Olympia, WA
Seattle, WA
The mini-roof at the top can be protected by a #1 C4 before standing up to clip the bolt on the face above the roof.
All-in-all, great variety, and a lot of fun. Jun 20, 2014
Bellevue, WA
Start: If you can't reach the first bolt before pulling the slabby move, do the alternate left start. A fall right around the first bolt is likely and would be bad if you can't reach to clip it first (it was a stretch even at 5'10" to reach it). Nov 11, 2020