Colorado · Rock climbing · Lyons

Unknown I

Upper-range route at Cays 3 combining bolts and placed protection.

5.8-
grade
Mixed
style

Is Unknown I open right now?

Alert in the area

The Forest Service lists 3 alerts for Arapaho and Roosevelt National Forests.

As of · Source: USFS · Arapaho and Roosevelt National Forests. Agencies don't list every closure — check before you go.

Best time to visit Unknown I

Best months: May–September. 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

    32° / 14°

  2. Feb

    35° / 15°

  3. Mar

    42° / 20°

  4. Apr

    46° / 23°

  5. May

    56° / 32°

  6. Jun

    69° / 38°

  7. Jul

    74° / 44°

  8. Aug

    73° / 43°

  9. Sep

    66° / 36°

  10. Oct

    52° / 29°

  11. Nov

    41° / 20°

  12. Dec

    33° / 14°

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Allenspark 3nw, CO, 5.3 mi away at 8,500 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

One of eight routes catalogued at Cays 3, this climb sits near the upper end of the crag's range. The line takes both bolts and placed gear on the same ascent.

Keep exploring — more climbs worth the drive

The CaysPhoto: Dave Snowden, CC BY-SA 2.0 (via Flickr)

The Cays

~0 min drive

Cays, The is a 2-route climbing area in Colorado with mixed protection.

Scarpa PizzoPhoto: Dave Snowden, CC BY-SA 2.0 (via Flickr)

Scarpa Pizzo

~2 min drive

Scarpa Pizzo in Colorado has 6 climbing routes with 3 difficulty grades in mixed, sport, and trad styles.

Black Dog WallPhoto: jamieotterbein, CC BY-SA 2.0 (via Flickr)

Black Dog Wall

~3 min drive

Black Dog Wall in Colorado has 5 traditional climbing routes across 5 grades.

Piz BadillePhoto: jamieotterbein, CC BY-SA 2.0 (via Flickr)

Piz Badille

~3 min drive

Piz Badille is a traditional climbing crag in Colorado with 4 routes across 3 grades.

South-southwest Face (aka Santa Rita Wall)Photo: jamieotterbein, CC BY-SA 2.0 (via Flickr)

South-southwest Face (aka Santa Rita Wall)

~3 min drive

South-southwest Face (aka Santa Rita Wall) in Colorado has 4 sport climbing routes on 4 difficulty grades.

Powerline AlcovePhoto: jamieotterbein, CC BY-SA 2.0 (via Flickr)

Powerline Alcove

~3 min drive

Powerline Alcove in Colorado has 8 routes across 5 grades, offering sport and trad climbing.

Punk Rock aka Poacher's Rock

~1 min drive

11-route climbing area in Colorado with mixed and sport climbing.

Mount Boner

~1 min drive

Mount Boner in Colorado has 9 sport climbing routes across 7 difficulty grades.

The Ironclads

~1 min drive

Ironclads, The in Colorado has 11 routes with mixed, sport, and trad climbing.

Ironsides

~2 min drive

Ironsides in Colorado has 11 climbing routes across 9 difficulty grades, featuring mixed, sport, and trad styles.

Local businesses nearby

Outfitters and businesses near Lyons. They haven’t set up their Roamze page yet.

Wildcat Mountaineering

Rock Climbing business nearby (~11 mi away) — hasn't claimed their Roamze page yet

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Movement Gyms

Rock Climbing business nearby (~14 mi away) — hasn't claimed their Roamze page yet

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Boulder Rock Club

Rock Climbing business nearby (~15 mi away) — hasn't claimed their Roamze page yet

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