Undertow

A Flatirons mega-enduro overhanging classic! Long (80 feet), pumpy and just plain fun, this is a must-do for the grade.

Undertow is the third route from the right on the imposing, overhanging west face of The Slab. It is well-shielded from the Fern Canyon trail by a thick, piney forest and climbs a spectacularly colorful wall on (mostly) positive horns, crimps and jugs. Expect some bizz-ness up by the lip.

This route is very-chalked up and quite easy to find.

Scramble around to the west side of the Slab from the Fern Canyon Trail and continue uphill (south) past the towering middle section of the wall. Undertow starts from the right side of the large ledge splitting the face and can be reached via a series of 3rd class ramps.

Six bolts to double-bolt anchors; you can stick-clip the first bolt. There is a also a single belay/directional bolt on the ledge. Some people use cams between the fifth and six bolts on the flaring crack out right.

Per

Will McNeill

: WARNING: the 3rd bolt pulled out 12/16/17, leaving the route in an unsafe state. As is, there is a lot of decking potential through the thin moves before bolt 4.