"Hold The Line offers a sharp 100-foot sport climb on Boulder Canyon’s Upper Tier, blending solid limestone with a smart mix of slab and corner moves. Perfect for climbers eyeing a brief yet engaging challenge off the beaten path."
Hold The Line carves out a fresh challenge on the Upper Tier of The Bihedral in Boulder Canyon, Colorado. Located just 30 feet to the left of the well-known Rhodian Shores route, this climb invites both newcomers and experienced climbers with its approachable 5.9 rating yet varied movement that keeps you engaged throughout. The climb unfolds on solid, character-rich stone, combining slabby face holds with a subtle V-corner crux that demands focus and precise footwork.
The route’s approach is straightforward, leading you to a high-quality bolt line that ascends through six fixed points before the crux. Initially, you angle left along a slanting ramp to reach the first bolt, then proceed upward past a series of five bolts through mostly 5.7 and 5.8 moves. After clipping the sixth bolt, the route shifts into a narrowing V-corner — the sequence's standout challenge — where an optional piece of protection, either a red Alien or a purple Camalot, can be slotted for peace of mind.
Beyond the corner, the climb finishes by traversing left across a slab, rewarded by a comfortable two-bolt anchor situated on a broad ledge. From here, you can choose to belay your partner or set up a 100-foot rappel/lowers to return safely to the ground.
The outdoor environment here is uncompromising and raw, with the Bihedral’s limestone walls catching the early sun and warming the rock by mid-morning. The canyon air carries whispers of pine and dry earth, while nearby foliage offers patches of shade to retreat into during hotter afternoons. The rock quality is excellent, providing consistent friction and well-spaced bolts that enhance confidence while climbing.
Plan your day to start early to enjoy cooler temperatures and less crowded approaches. Feet-first on reliable climbing shoes will serve you best given the mix of slab and corner features. Bring along a standard sport rack, but keep a red Alien or purple Camalot handy for the optional placement at the crux. Hydration is key, as the approach trail carries you through humid pockets and dry stretches alike, so pack accordingly.
Hold The Line is an inviting route that blends physical technique with mental puzzle-solving in equal measure. It’s ideal for climbers who want to push their limits on a singular pitch that balances accessibility with moments of genuine challenge, set against the striking backdrop of Boulder Canyon’s Upper Tier.
Watch for the wedged chockstone near the top of the V-corner, which can challenge route-finding in low light. Ensure optional protection is properly placed to manage the crux safely. Also, be cautious on the slab section after the corner as it relies on friction and precise foot placement.
Start early to avoid the afternoon heat and to enjoy the rock warming naturally.
Bring a red Alien or purple Camalot for the V-corner crux optional protection.
Wear sticky-soled shoes for slab traction and precise foot placement.
Hydrate well, as the approach trail offers limited water sources and mixes shaded and exposed sections.
Equipped with 9 bolts leading to a two-bolt anchor shared with Rhodian Shores. A red Alien or purple Camalot can be placed after bolt six for added security at the crux. The route ends with options to belay or lower 100 feet back to the base.
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