Tucked along the far right edge of River Wall II, Dihedral (also known by many as Shades of Murky Depths) offers a straightforward yet engaging sport climb that combines accessible movement with a useful purpose. This 60-foot, single-pitch route is not just a climb but a practical gateway—an ideal warm-up or strategic option for bypassing creek crossings when navigating the St. Vrain Canyons near Lyons, Colorado. Approaching the climb, you find yourself on rocky ground that avoids scrambling through the creek, a small but meaningful convenience that saves time and energy in this rugged landscape.

The climb ascends a distinct dihedral, protected by four bolts spaced evenly along the left-hand side, offering a clear line that emphasizes precise footwork over brute strength. The hands don’t burn here; instead, the challenge lies in maintaining balance and composure on technical edges and smears that reward concentration. As you rise, the rock invites confident movements with modest holds—perfect for climbers looking to tune their foot placement while settling into the rhythm of the granite.

At the apex, a two-bolt anchor awaits, positioned just right of the final bolt. This setup not only secures your descent but also serves as a critical staging point to access other popular climbs in the area without wading through the creek’s sometimes unpredictable current. The top section, however, demands a cautious approach—loose fragments scatter between the last bolt and the anchors, a reminder that even on easier climbs, awareness of rock stability is vital.

Beyond the climbing itself, this route’s location within the Longmont Reservoir Area, close to the North Fork of the St. Vrain River, provides a scenic backdrop of flowing waters daring you on and off the rock. The surrounding river canyons offer a blend of peaceful sounds and rugged landscape, with the sun filtering through nearby trees and cliffs that flank the wall. This climbs’ approachable nature, combined with minimal arm pump, makes it an accessible challenge for climbers warming up or scouting the Wall’s many lines.

Practically, plan to wear sturdy climbing shoes with reliable edging capabilities to fully exploit the small footholds. Given the loose rock near the top and the potential for slippery surfaces close to the water, a helmet and attentive movement are musts. Early morning or late afternoon climbs provide the best temperature balance since the wall faces a variable aspect that can swing between sun and shade.

In terms of protection, the four bolts along the face and the fixed two-bolt anchor simplify gear management, allowing climbers to focus on technique rather than placements. Still, be mindful of the quickdraws' placements and the occasional rock fall hazard. Remember, this route functions as much as a connector and preparation climb as it does a stand-alone experience—it bridges climbers toward harder challenges without demanding excess exertion.

Whether you’re preparing for a day of sending in the St. Vrain Canyons or seeking a low-stress introduction to River Wall II, Dihedral offers a compelling mix of practicality and climbing consistency, with just enough challenge to keep you engaged without draining your reserves.