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Der Zerkle
Routes Sorted
L to R R to L Alpha
Absolution S 
April Fools S 
Bar None S 
Der Fuhrer TR 
East Face Left Side T 
East Face Right/Der Zerkle T 
Feeling Lucky S 
Final Solution T 
Happy Ending T 
Hot if You're Not aka The Brown Eye Wall S 
Knot Carrot S,TR 
Ribspuren T 
Southeast Arete T 
Sunny Side One T 
Sunny Side Two T 
Touch Monkey S,TR 
Two Clucks From Saigon T,TR 
West Face [Der Zerkle] T 
What If You're Not? T,TR 
Wing Ding S,TR 
Unsorted Routes:

Sunny Side One 

YDS: 5.5 French: 4b Ewbanks: 13 UIAA: IV+ ZA: 11 British: MS 4a

Type:  Trad, 3 pitches, Grade II
Original:  YDS: 5.5 French: 4b Ewbanks: 13 UIAA: IV+ ZA: 11 British: MS 4a [details]
FA: Unknown
Page Views: 1,139
Submitted By: Warren Teissier on Oct 11, 2001

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  • Routes on Der Zerkle are closed from 1 April to 1 September MORE INFO >>>
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  • Description 

    This route climbs a ramp located on the South side of Der Zerkle about 100 feet West from the low point of the rock. The Mallory Cave trail used to pass a couple of feet from the bottom of this climb but has since been re-routed South

    Hike the Mallory Cave trail past the bottom of the rock and exit it at the switchbacks about 130 feet above the bottom of the rock. Hike some 40 feet to the rock and and down a bit. Look for the Easternmost ramp ascending the South face (from East to West). The Westernmost ramp is Sunny Side Two and does not reach the summit....

    Climb the easy ramp (5.2-5.3) past a 2 foot arch for 150 ft. At this point the ramp becomes steep, polished and is blocked by a headwall. Traverse right (North) past the overhanging wall (5.5) and onto the large ledge that cuts across the entire East face of Der Zerkle.

    From here you can finish via the East Face North side or South Side routes.

    Addendum: Excerpted from the Boulder Mountain Parks website: "THE EAST FACE OF DER ZERKLE including the following routes: Sunnyside One, East Face Left, East Face Right. All other climbing areas on Der Zerkle and Mallory Cave Trail remains open."


    Standard Flatiron rack.

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    By Tony B
    From: Around Boulder, CO
    Jun 7, 2006
    rating: 5.7 5a 15 V+ 13 MVS 4b R

    As I recall it, this is more runout than the average Flatiron route and a little hard compared to other 5.5s. The right-hand traverse is quite long and goes perhaps 20+ meters to the niche below the tunnel-through moves of the second vertical pitch.
    Worthy for the completist's list, but not nearly a classic Flatiron route.

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