Illinois · Rock climbing · Savanna

L: Dihedrals Area

7 routes
5.6 – 5.13
Trad
Apr–Oct
best months

Clear at last check

Weather is good · OpenWeather · checked 13 h ago

L: Dihedrals Area is a climbing area in Illinois, about a mile from the town of Savanna. It sits among a cluster of named climbing areas, with K: Butter Walls just 0.6 miles away and J: Amphitheater Wall and I: Bee Wall each about 0.8 miles off. The area is known for its traditional routes, which range from 5.6 to 5.13 on the YDS scale. The routes here are all trad, and the grade range spans from the low 5s to the low 13s. No Sense of Decency is a 5.6, and Wide Glide is the hardest at 5.13. The first ascents of several of these routes date back to the late 1980s, with Dave Brown and Doug Johnson among the early climbers. For timing, late spring and early fall are the most comfortable. Typical averages from a nearby weather station in Mt Carroll show May highs around 72°F and September highs around 77°F, with July peaking near 85°F. The Mississippi Palisades State Park Trails South are about a mile away, and the park's trails north are roughly 3.6 miles off. Paddlers can find the Plum River about 9.4 miles away.

  • Best time to go · Apr–Oct

    Best time to visit L: Dihedrals Area

    Best months: April–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

      31° / 11°

      9 wet

    2. Feb

      35° / 14°

      8 wet

    3. Mar

      48° / 26°

      9 wet

    4. Apr

      61° / 36°

      11 wet

    5. May

      72° / 47°

      12 wet

    6. Jun

      82° / 57°

      11 wet

    7. Jul

      85° / 60°

      9 wet

    8. Aug

      83° / 58°

      9 wet

    9. Sep

      77° / 50°

      8 wet

    10. Oct

      64° / 38°

      9 wet

    11. Nov

      48° / 27°

      8 wet

    12. Dec

      36° / 17°

      9 wet

    Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Mt Carroll, IL, 9 mi away at 640 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Routes (7)

Keep exploring — more climbs worth the drive

E: Twin SistersPhoto: Eric Schmuttenmaer from Downers Grove, USA, CC BY-SA 2.0 (via Wikimedia Commons)

E: Twin Sisters

~2 min drive

E: Twin Sisters in Illinois has 17 climbing routes across 7 grades, featuring top-rope and trad options.

D: Open BiblePhoto: Eric Schmuttenmaer from Downers Grove, USA, CC BY-SA 2.0 (via Wikimedia Commons)

D: Open Bible

~2 min drive

D: Open Bible in Illinois has 9 traditional climbing routes across 6 grades.

C: Sun ButtressPhoto: Eric Schmuttenmaer from Downers Grove, USA, CC BY-SA 2.0 (via Wikimedia Commons)

C: Sun Buttress

~2 min drive

C: Sun Buttress in Illinois has 12 traditional climbing routes across 7 grades.

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K: Butter Walls

~1 min drive

K: Butter Walls is a climbing crag in Illinois with 6 routes.

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J: Amphitheater Wall

~1 min drive

J: Amphitheater Wall in Illinois has 8 trad routes across 6 difficulty grades.

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I: Bee Wall

~1 min drive

I: Bee Wall in Illinois has 15 climbing routes with 8 difficulty grades.

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H: Indian Head

~2 min drive

H: Indian Head is a climbing area in Illinois with 5 routes.

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F: Brother Buttress

~2 min drive

11-route climbing crag in Illinois with 8 difficulty grades, offering top-rope and trad climbing.

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B: Forgotten Wall

~2 min drive

B: Forgotten Wall in Illinois has 19 trad climbing routes across 9 difficulty grades.

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A: Sentinel

~2 min drive

A: Sentinel in Illinois has 32 climbing routes with 16 distinct difficulty grades.