HomeClimbingUnknown 2

Unknown 2 at Combat Rock, Big Thompson Canyon

Estes Park, Colorado United States
thin crack
runout
single-pitch
mixed protection
spring-fall
exposed anchors
Length: 60 ft
Type: Trad, Sport
Stars
Pitches
1
Location
Unknown 2
Aspect
South Facing

Overview

"Unknown 2 is a brief yet engaging single-pitch climb in Big Thompson Canyon that blends trad and sport styles. It demands precise gear placements and steady movement along a thin crack, set against the compelling backdrop of steep granite and quiet canyon air."

Unknown 2 at Combat Rock, Big Thompson Canyon

Peeling off a tucked-away corner of Combat Rock, Unknown 2 offers a focused, no-frills climbing experience in the rugged embrace of Big Thompson Canyon. The route threads 60 feet of moderate, varied rock that rewards steady movement on both trad and sport gear. Beginning with a reachable but purposeful scramble to a solitary bolt, the climb demands a measured approach as it follows a skinny crack where thoughtful gear placements become more than a convenience—they’re essential. Climbers will find themselves negotiating thin protection up to a #2 cam, a delicate dance demanding both confidence and attention.

Big Thompson Canyon itself shapes the backdrop: its raw granite walls rise sharply beside the flow of the river below, carrying the chatter of pine-scented breezes and a pulse of wild nature that stays just on the edge of earshot. The approach is straightforward enough to keep your focus on the route ahead, but warnings of loose rock and the exposure around anchors call for respect and proper preparation.

Unknown 2 suits climbers chasing a brief, single-pitch challenge with versatility—combining sport’s security with the tactical engagement of traditional pro. The line offers a touch of technicality without overwhelming, making it an excellent pick for those sharpening crack technique and gear placement skills within a steep, rugged Colorado setting.

Timing a climb here matters: afternoon sun casts warm light across the granite face, but summer heat can make the approach sticky; a spring or fall ascent balances comfortable temps and stable rock conditions. Your pack should include extra slings and cams to cover the thin, narrow placements, along with sturdy climbing shoes that grip the variable holds.

Though the bolt provides a welcome anchor, the runout sections between pro demand vigilance—underscoring the value of mental readiness as much as physical ability. Descending is straightforward: a top-rope rappel or cautious walk-off keeps the return low-key and safe.

In all, Unknown 2 at Combat Rock is a practical climb with enough adventure to hold your attention. It challenges without intimidation, inviting climbers to engage the rock thoughtfully while soaking in the solitude and raw beauty of one of Colorado’s quieter canyon walls.

Climber Safety

Watch for loose rock near the anchor ledge and remain mindful of runout sections between placements. The thin gear capabilities require solid placement technique to minimize risk.

Route Details

TypeTrad, Sport
Pitches1
Length60 feet

Local Tips

Start early to avoid afternoon heat on the granite face.

Wear sticky shoes suited for crack climbing and technical footwork.

Double-check all gear placements—runouts between bolt and gear can be committing.

Scout the anchors before climbing; some loose rock is present near the top.

Route Rating

Difficulty
5.9-
Quality
Consensus:The 5.9- rating on Unknown 2 feels on the softer side but demands careful footwork and solid gear judgment. The crux is managing thin gear in a trusting but controlled fashion rather than raw difficulty. Compared to other moderate sport routes in the area, it leans more into technical steadiness, especially for those honing crack climbing skills.

Gear Requirements

Thin protection placements up to a #2 cam are required, with a mix of traditional gear and a single fixed bolt. Bring extra cams and slings for confidence in the runout sections.

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Tags

thin crack
runout
single-pitch
mixed protection
spring-fall
exposed anchors