Idaho · Rock climbing · Boise

The Fortress

The Fortress is a climbing area in Idaho with 9 routes.

The FortressPhoto: Matt Lavin, CC BY-SA 2.0 (via Flickr)
9 routes
V0 – V4
Bouldering

Best time to visit The Fortress

Best months: April–June and September–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

    39° / 26°

    11 wet · 5 snow

  2. Feb

    46° / 29°

    9 wet · 3 snow

  3. Mar

    55° / 35°

    10 wet · 2 snow

  4. Apr

    62° / 40°

    9 wet

  5. May

    72° / 48°

    8 wet

  6. Jun

    81° / 54°

    5 wet

  7. Jul

    93° / 62°

    3 wet

  8. Aug

    91° / 61°

    2 wet

  9. Sep

    80° / 53°

    4 wet

  10. Oct

    65° / 42°

    6 wet

  11. Nov

    49° / 32°

    10 wet · 2 snow

  12. Dec

    39° / 25°

    12 wet · 5 snow

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Boise Air Terminal, ID, 5.2 mi away at 2,814 ft. The station sits about 800 ft lower than this place, so expect it a little cooler here. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

The Fortress is a rock climbing area in Idaho, about a mile from Vernon. It sits among a tight cluster of climbing spots, so it can be part of a day that moves between nearby walls. For comfortable conditions, aim for spring or fall. Typical averages from the Boise Air Terminal weather station, about 5 miles away, show May highs around 72°F and October highs near 65°F, and because the crag sits roughly 750 feet above that station, temperatures here tend to run a little cooler. Midsummer is the hot stretch, with July highs averaging in the low 90s. Propeller Area, Table Rock and Bob's Nose are all about a tenth of a mile away, and the #17 Table Rock Quarry mountain bike route starts roughly 0.2 miles off. The Boise River lies about 1.7 miles away for fishing.

Routes (9)

Keep exploring — more climbs worth the drive

Table RockPhoto: Matt Lavin, CC BY-SA 2.0 (via Flickr)

Table Rock

~0 min drive

Table Rock in Idaho has 18 climbing routes with 16 difficulty grades, offering bouldering, mixed, and sport styles.

Bob's NosePhoto: Matt Lavin, CC BY-SA 2.0 (via Flickr)

Bob's Nose

~0 min drive

Bob's Nose in Idaho has 5 bouldering routes across 4 difficulty grades.

Green AcresPhoto: cifraser1, CC BY 2.0 (via Flickr)

Green Acres

~8 min drive

Green Acres in Idaho has 10 climbing routes across 6 grades, offering sport and trad options.

Populace WallPhoto: cifraser1, CC BY 2.0 (via Flickr)

Populace Wall

~8 min drive

Populace Wall in Idaho has 13 climbing routes across 6 grades in mixed, sport, and trad styles.

Scary CanyonPhoto: cifraser1, CC BY 2.0 (via Flickr)

Scary Canyon

~9 min drive

Scary Canyon in Idaho has 10 sport climbing routes across 6 grades.

Swan FallsPhoto: cifraser1, CC BY 2.0 (via Flickr)

Swan Falls

~45 min drive

Swan Falls is a bouldering crag in Idaho with 16 routes.

Propeller Area

~0 min drive

Propeller Area in Idaho has 9 climbing routes with bouldering pads, mixed, and sport styles.

Blasted Wall

~0 min drive

Blasted Wall in Idaho has 11 bouldering routes across 5 difficulty grades.

Big Times Area

~0 min drive

Big Times Area in Idaho has 7 climbing routes on 6 difficulty grades.

The Little Quarry

~0 min drive

Little Quarry, The is a climbing area in Idaho with 13 routes and 7 distinct difficulty grades.