Rising sharply at nearly 12,000 feet on Mt. Blue Sky (formerly Mount Evans), Rock Hard Tower is an alpine crag that demands your full attention. Its solitary route, Rock Hard, rated 5.12d, stands out as a beacon for climbers ready to push themselves in lofty, thin air. While the area remains quieter than many front-range destinations, the approach and the climb reward those who make the journey with a raw mountain experience.

Access to this striking tower begins along Mt. Blue Sky Road—an alpine route itself, offering stunning mountain views. After traveling 4.5 miles past the pay station and rounding a sharp left turn, pull into a spacious roadside turnout on the left. The hike begins here. Expect a solid 1.5-mile trek southwest along ridgelines, crossing over small high-alpine ridges before threading toward the cliff band studded with rock spires. Look for the largest spire, where Rock Hard ascends its jagged face.

This approach isn’t a casual stroll. You’ll be walking through mixed terrain that hints at the alpine environment’s rugged charm—thin forests give way to open rocky slopes, and the air thins steadily as you near the crag. The quiet at 11,951 feet elevates the experience, lending a sense of isolation that few climbing areas near Denver can match.

The climbing itself is a test piece for strong athletes. Rock Hard combines technical sport climbing moves with the physical demands of high elevation. The route's grade rewards precise footwork and a steady focus, inviting climbers to savor every dynamic and static sequence. Although only one route is presently established, the imposing presence of the rock spires and the towering landscape encourage adventurous climbers to explore further possibilities carefully.

Due to road closures on Mt. Blue Sky Road through 2025, reaching Rock Hard Tower requires a full hike in, adding to the day’s adventure and demanding a bit more planning. Pack accordingly—bring plenty of water for the trek and be ready for swift weather changes common at alpine heights.

The wall faces generally receive afternoon sun, with mornings offering cooler conditions, making summer and early fall the prime climbing seasons. Be prepared for brisk winds and possibly sudden temperature drops, especially when clouds roll over.

As for gear, the Rock Hard route benefits from sport protection, and although detailed gear specifics aren’t given, climbers should come equipped with a standard sport rack and a good range of quickdraws. The high-altitude approach and potential for unpredictable weather make extra layers and solid boots essential.

Descent is by walking off along the ridge trails back to the parking area; be alert for slippery rock and uneven footing after exertion.

Rock Hard Tower sits within the Alpine Rock sector of the Mt. Blue Sky area—an increasingly popular destination for climbers seeking high-elevation challenges away from busier crags. The rugged landscape commands respect and rewards well-prepared climbers with quiet alpine solitude and breathtaking vistas.

This piece of Colorado alpine climbing offers a compelling experience for those who seek to blend high-mountain hiking with a demanding, technical climb. Bring your ambition and respect for the mountain environment, and Rock Hard Tower will give you a day to remember.

Classic climbs include the aptly named Rock Hard (5.12d), a route that has earned a strong following for its bold moves and sustained difficulty at altitude.