Type: TR, 40 ft
FA: unknown
Page Views: 1,077 total · 13/month
Shared By: Rocket on Aug 18, 2012
Admins: Frances Fierst

You & This Route

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Climb a narrow path between Butterfly and Easy Layback. The crack is off. So is the left side of the face. What's on? About 2 feet in the middle.


Hades Heights, about 30 feet upstream from the end of the path. Find the flake for Easy Layback, and move just left of that.


Trees and large boulders for toprope anchors


very thin face and smear; the difficulty varies with the temperature and humidity. Nov 20, 2013
Chris Oleson
Santiago, Chile
Chris Oleson   Santiago, Chile
FYI this route is named for my dad, Merval Oleson, who regularly climbed at Carderock in the 50's and 60's. One of the women he and his partners went climbing with came up with the name after seeing my dad do the "sewing machine leg" (that is the story my dad tells, and it was supposed to be Merv's Nerves plural). As with many of the climbs at Carderock, this route has become much more difficult over the years due to polish and holds breaking off Dec 9, 2015
Fun technical challenge. Interestingly, I was able to get this clean but was never able to get Butterfly clean, though it is a 5.9. Jul 13, 2017