The OoohAhhh route on Hidden Valley Slab presents a solid day of traditional climbing that tests both your route-finding skills and crack-protection judgment. Situated in the Goose Creek area near Molly Gulch Campground along South Platte, Colorado, this four-pitch line stretches approximately 400 feet over a mix of slab and crack features. From the approach, the granite looms with a quiet challenge: slabs that ripple with subtle angles and cracks that aren’t always immediately obvious. The climb begins to the right of a prominent cleft, inviting you into a rhythm of searching for reliable placements and steady moves.

The first pitch ascends about 170 feet, threading through an area where pro placements need a keen eye—protection spots don’t scream for attention but reward patience and precision. The rating starts with a 5.8 R, reminding climbers that while the moves are moderate, the runouts demand respect and confidence. Reaching a belay beneath a shallow roof offers a moment to gather strength and size up the next challenge.

Pitch two carves upward across moderate slabs, linking isolated cracks. Here the face climbs steadily, requiring balance and mindful footwork; protection placements remain sparse but manageable with gear up to three inches. The crack routes and face holds combine to keep the climb engaging without becoming overwhelming.

Pitch three keeps you moving through a combination of crack systems and solid face holds. The 5.8 difficulty feels steady and approachable, though the slab sections remind you to stay attentive to footing and gear. Easy slab climbing leads you to the final pitch, where the graded moves ease off and the rock opens up to expose broad, clean surfaces that encourage a confident finish.

Beyond its technical demands, OoohAhhh rewards climbers with the quiet companionship of the Hidden Valley Slab environment. The rock’s texture is cool and smooth beneath your hands, occasionally warming under the sun, and the surrounding landscape widens from close forested patches to distant mountain views. This climb isn’t a sprint; it asks for steady composure and respect for natural features that challenge but rarely overpower.

Preparation is key: carrying a standard rack with placements up to three inches is essential given the protection availability. Climbers should bring sturdy shoes suited for slab climbing and be ready for both moderate friction and occasional slick spots. The approach is straightforward but demands navigation skills, as the base lies just right of a large cleft and requires a short hike through forest trails.

Timing your climb to avoid peak heat or afternoon storms improves both safety and enjoyment. Early morning or late afternoon ascents catch the wall with gentle light and cooler temperatures, perfect for the subtle grit of granite slabs. Descend by walking off the broad summit or carefully downclimbing sections where necessary—avoid rushing, as footing can be deceptive when tired.

Finally, this route stands as a quiet classic in Colorado’s South Platte region. It balances adventure with practical climbing challenges, offering a rewarding experience for those seeking a moderately difficult traditional climb with a hint of runout excitement. Whether you’re adding it to your local portfolio or seeking a fresh ascent on slab terrain, OoohAhhh delivers solid endurance climbing with personality and practicality.