Colorado · Rock climbing · Golden

Tunnel 1 Trail Boulders

Colorado bouldering area with varied problems and natural rock formations.

Tunnel 1 Trail BouldersPhoto: pingnews.com, CC BY-SA 2.0 (via Flickr)
4 routes
V4-5 – V7
Bouldering

Best time to visit Tunnel 1 Trail Boulders

Best months: April–June and August–October. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.

  1. Jan

    45° / 23°

    4 wet

  2. Feb

    46° / 22°

    5 wet

  3. Mar

    54° / 29°

    6 wet

  4. Apr

    60° / 35°

    8 wet

  5. May

    69° / 45°

    9 wet

  6. Jun

    81° / 55°

    7 wet

  7. Jul

    87° / 61°

    7 wet

  8. Aug

    84° / 59°

    8 wet

  9. Sep

    76° / 51°

    6 wet

  10. Oct

    64° / 39°

    5 wet

  11. Nov

    53° / 30°

    4 wet

  12. Dec

    45° / 23°

    4 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Ralston Rsvr, CO, 5.6 mi away at 5,900 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Tunnel 1 Trail Boulders is a climbing area in Clear Creek Canyon Park, on county land in Colorado. It sits among a cluster of bouldering spots, with other climbing areas just a short distance away. The most comfortable climbing weather comes in late spring and early fall. Typical averages from a nearby weather station show September highs around 76°F with lows near 51°F, and May highs around 69°F. Midsummer is warmer, with July highs near 87°F. The Twilight Zone and Long Boulder climbing areas are each about 0.1 mile away, and the Canal Zone is about 0.2 mile away. For a hike, the Clear Creek Trail is roughly 0.4 mile off.

Keep exploring — more climbs worth the drive

The Twilight ZonePhoto: Jeffrey Beall, CC BY 4.0 (via Wikimedia Commons)

The Twilight Zone

~0 min drive

Twilight Zone is a 5-route sport climbing area in Colorado with 5 distinct difficulty grades.

Long BoulderPhoto: pingnews.com, CC BY-SA 2.0 (via Flickr)

Long Boulder

~0 min drive

Long Boulder is a 4-route bouldering crag in Colorado with routes spanning 4 difficulty grades.

The Canal ZonePhoto: pingnews.com, CC BY-SA 2.0 (via Flickr)

The Canal Zone

~0 min drive

Canal Zone, The is a climbing area in Colorado with 27 routes.

Pride RockPhoto: pingnews.com, CC BY-SA 2.0 (via Flickr)

Pride Rock

~0 min drive

Pride Rock is a Colorado climbing crag with 13 routes.

The Sports WallPhoto: pingnews.com, CC BY-SA 2.0 (via Flickr)

The Sports Wall

~0 min drive

12-route climbing area in Colorado with mixed, sport, and trad styles.

New Hipster RockPhoto: Jeffrey Beall, CC BY 4.0 (via Wikimedia Commons)

New Hipster Rock

~1 min drive

New Hipster Rock in Colorado has 8 routes spanning mixed and sport styles.

Crimson Tide WallPhoto: pingnews.com, CC BY-SA 2.0 (via Flickr)

Crimson Tide Wall

~1 min drive

Crimson Tide Wall in Colorado offers 6 mixed, sport, and trad climbing routes across 6 difficulty grades.

Hot Spot AreaPhoto: ShanMcG213, CC BY-SA 2.0 (via Flickr)

Hot Spot Area

~4 min drive

14-route climbing area in Colorado with sport and trad options.

Winterfest WallPhoto: ShanMcG213, CC BY-SA 2.0 (via Flickr)

Winterfest Wall

~4 min drive

Winterfest Wall in Colorado has 37 climbing routes across 18 difficulty grades, offering mixed, sport, and trad styles.

The Risk AreaPhoto: gregglesworth, CC BY-SA 2.0 (via Flickr)

The Risk Area

~4 min drive

Risk Area, The in Colorado has 33 routes across 14 grades, offering mixed, sport, and trad climbing.