Open Ass stands out as a craftily demanding sport climb located at the far edge of the climbing zone in El Triángulo, within the dramatic landscapes of Cañon de San Lorenzo, Northern Mexico. This single-pitch route measures a compact 30 feet but refuses to be underestimated. Beginning with a deceptively simple slab, it lures you into a rhythm that quickly gives way to a puzzling sequence where holds seem to vanish before your eyes. The climb’s key challenge emerges after clipping the first two quickdraws—footholds dwindle, handholds hide, and the wall seems to toy with your expectations. The secret lies in a subtle side pull to the left, which defies the straightforward progression and forces you to adjust your tactics on the fly. Discovering this hidden hold transforms the crux into a manageable move, fostering a satisfying sense of victory over the climb’s cryptic nature.

The rock’s texture feels solid but requires confident smearing and balance more than raw power. Climbers should anticipate moments where their hands and feet will seek connection in unexpected places, inviting a mental puzzle alongside the physical effort. This blend of delicate footwork and strategic grabbing makes Open Ass an appealing option for those who enjoy a mental workout paired with concise exertion.

Situated in a remote section of Coahuila’s classic climbing areas, the route benefits from warm sun exposure throughout the day, ideal for afternoon sessions when the canyon basks fully in light. The approach is straightforward, dropping into a zone rich with other climbs but offering a somewhat quieter experience thanks to its location at the zone’s edge. Visualizing the route’s position and the surrounding canyon walls provides a quiet backdrop of rugged desert greenery and a cool breeze that occasionally sweeps in, reminding you of the wild frontier you are engaging.

Protection for the climb is simple but demands precision. With seven quickdraws sufficient to cover the wall, you’ll want to focus on clip placements, particularly around the crux where holds narrow. While the fixed anchors at the top are reliable, many climbers recommend exploring the better-established anchors slightly to the left for a smoother and safer rappel or lowering.

For visitors planning their trip, sturdy climbing shoes with excellent friction will pay off here, especially when searching out those demanding footholds. It’s wise to avoid overcrowded times and opt for midweek climbs to enjoy quieter conditions. Hydration remains important even on short routes, as the dry air and sun exposure can quickly sap energy. Weather is most favorable in the cooler months, yet the warmth in the sun during spring or fall afternoons balances comfort and performance.

Open Ass rewards a climber’s persistence and adaptability. It offers a rewarding challenge for those ready to read the rock beyond the obvious and decode its subtle prompts. This route isn’t about flash; it’s about engaged focus and clever movement in an environment that holds firm in its demands. Whether you’re stepping into sport climbing or seeking a sharpened experience along Northern Mexico’s climbing circuit, Open Ass invites you to test your precision in this quietly compelling canyon.