All Locations > Colorado > Boulder

Classic Climbs for Flatirons

Mountain Project's determination of the most popular, highly-rated routes.

V1-2 5 271 ● A7 -V1 Boulder North > Satellite Boulders > A-7 Boulder
V4- 6B 276 ● Original Grapple Boulder North > Satellite Boulders > BBC Boulder
V4 6B 20 ● Spewbacca Boulder South > Terrain Boulders (aka…
V6-7 7A+ PG13 14 ● Bongo (Fury) Boulder South > Bongo Boulder
V7- 7A+ PG13 11 ● Holly's Face (variation) Boulder South > Terrain Boulders (aka…
V7 7A+ 20 ● The Gutter Boulder North > Second Flatiron
V8 7B 185 ● The Turning Point Boulder North > Satellite Boulders > BBC Boulder
V8 7B 16 ● [Redacted] Boulder Central > Bear Canyon Bouldering
V8 7B 48 ● Edging Edgio Boulder Central > Elevated Boulder
V9 7C 35 ● Fleshfest Boulder North > Satellite Boulders > BBC Boulder
V10 7C+ 15 ● Tower of Power Boulder South > Terrain Boulders (aka…
5.0 2- 4 I 6 MM 1c 1,296 ● Freeway Trad 6 pitches North > Second Flatiron
5.0 2- 4 I 6 MM 1c 115 ● Yodeling Moves Trad 3 pitches North > Hammerhead
5.2 3 8 II 8 D 2c 291 ● Angel's Way Trad 8 pitches North > Skunk Canyon > Ridge 3 aka Angel's Way
5.3 3+ 10 III 9 VD 3a R 46 ● Fi Fun Trad 3 pitches Central > Fi
5.4 4a 12 IV 10 VD 3c 1,213 ● East Face (Standard) Trad 8 pitches North > Third Flatiron
5.4 4a 12 IV 10 VD 3c R 55 ● Winky Woo Trad North > Third Flatiron
5.4 4a 12 IV 10 VD 3c 284 ● East Face North Side/Seal Rock Trad 4 pitches South > Seal Rock
5.4 4a 12 IV 10 VD 3c 277 ● North Arete Trad 5 pitches North > First Flatiron
5.5 4b 13 IV+ 11 MS 4a 243 ● Fandango Trad 5 pitches North > First Flatiron
5.5 4b 13 IV+ 11 MS 4a 70 ● Takin' Care of Business/ West Ch… Trad North > Green Mtn Pinnacle
5.5 4b 13 IV+ 11 MS 4a R 42 ● East Face/Challenger Trad 2 pitches North > Challenger
5.5 4b 13 IV+ 11 MS 4a 154 ● East Face Left Trad 9 pitches North > Third Flatiron
5.6 4c 14 V 12 S 4b R 1,349 ● Direct Route Trad 10 pitches North > First Flatiron
5.6 4c 14 V 12 S 4b R 244 ● North Face Trad 5 pitches South > Maiden
5.7 5a 15 V+ 13 MVS 4b 117 ● Friday's Folly Trad North > Third Flatiron
5.8 5b 16 VI- 15 HVS 4c R 56 ● Satan's Slab Trad 8 pitches North > Skunk Canyon > Ridge 2 aka Satan's Slab
5.8 5b 16 VI- 15 HVS 4c R 25 ● West Face Trad, TR South > Matron
5.9 5c 17 VI 17 HVS 5a 21 ● Rainbow Bridge Trad, Sport South > Fern Canyon > Nebel Horn Ridge
5.10 6b 20 VII- 19 E2 5b 34 ● Waiting For Columbus Trad, Sport North > Third Flatiron
5.10c 6b 20 VII 20 E2 5b 145 ● East Ridge Trad 5 pitches South > Maiden
5.11a 6c 22 VII+ 22 E3 5c 45 ● Velvet Elvis Sport 2 pitches North > E Ironing Board
5.11a 6c 22 VII+ 22 E3 5c 48 ● Happy Medium Sport South > Shanahan Crag
5.11b 6c 23 VIII- 23 E3 5c 119 ● Death and Transfiguration Trad North > Green Mtn Pinnacle
5.11b 6c 23 VIII- 23 E3 5c 277 ● Touch Monkey Sport, TR Central > Der Zerkle
5.11b 6c 23 VIII- 23 E3 5c 52 ● South Crack Trad South > Maiden
5.11b 6c 23 VIII- 23 E3 5c 18 ● Direct West Face a/k/a Western S… Trad North > Third Flatiron
5.11b 6c 23 VIII- 23 E3 5c 71 ● Wait For It... Sport South > Shanahan Crag
5.11b/c 6c+ 23 VIII- 24 E4 6a 59 ● West Overhang Trad 2 pitches South > Maiden
5.11b/c 6c+ 23 VIII- 24 E4 6a 13 ● Dream Street Rose Trad 2 pitches South > Maiden
5.11c 6c+ 24 VIII- 24 E4 6a 58 ● Cardboard Cowboy Sport Central > Hand
5.11c 6c+ 24 VIII- 24 E4 6a 50 ● The Gates of Delirium Sport South > Maiden
5.11+ 7a 24 VIII 24 E4 6a PG13 12 ● Fluorescent Gray Trad South > Fern Canyon > E Ridge
5.11+ 7a 24 VIII 24 E4 6a 10 ● South Side of the Sky Sport 2 pitches Central > Finger Flatiron
5.12a 7a+ 25 VIII+ 25 E5 6a 12 ● Castles Made of Sand Sport South > Fern Canyon > Fiddlehead
5.12a 7a+ 25 VIII+ 25 E5 6a 110 ● Just Another Boy's Climb Trad South > Slab
5.12a 7a+ 25 VIII+ 25 E5 6a 208 ● Patience Face Sport, TR Central > Dinosaur Rock
5.12a 7a+ 25 VIII+ 25 E5 6a 78 ● Birthstone Sport South > Shanahan Crag
5.12- 7a+ 25 VIII+ 25 E5 6a 16 ● Pile In the Sky Sport North > Third Flatiron
5.12b 7b 26 VIII+ 26 E5 6b 33 ● Yellow Christ Trad, TR Central > Square Rock
5.12b 7b 26 VIII+ 26 E5 6b 254 ● Undertow Sport South > Slab
5.12b 7b 26 VIII+ 26 E5 6b 39 ● Chains of Love Trad, Sport 2 pitches South > Fern Canyon > Fiddlehead
5.12b 7b 26 VIII+ 26 E5 6b 75 ● Discipline Sport Central > Box
5.12b 7b 26 VIII+ 26 E5 6b 9 ● Transgression Trad North > Green Mtn Pinnacle
5.12b 7b 26 VIII+ 26 E5 6b 272 ● The Shaft Sport, TR Central > Dinosaur Rock
5.12b 7b 26 VIII+ 26 E5 6b 17 ● Big Bruce Sport South > Goose
5.12b 7b 26 VIII+ 26 E5 6b 16 ● The Stoop Sport South > Seal Rock
5.12b 7b 26 VIII+ 26 E5 6b 22 ● North Side of the Sky Sport 2 pitches South > Maiden
5.12 7b+ 27 VIII+ 26 E6 6b 12 ● Serpentine Dreams Sport South > Matron
5.12c 7b+ 27 IX- 27 E6 6b 80 ● Power Bulge Sport Central > Hand
5.12c 7b+ 27 IX- 27 E6 6b 76 ● Film Noir Sport South > Slab
5.12c 7b+ 27 IX- 27 E6 6b 16 ● Maiden Voyage Sport South > Maiden
5.12c 7b+ 27 IX- 27 E6 6b 32 ● Strata-Caster Sport South > Overhang Rock
5.12c 7b+ 27 IX- 27 E6 6b 11 ● Skein Sport South > Goose
5.12c 7b+ 27 IX- 27 E6 6b 65 ● DK Superstar Sport South > Shanahan Crag
5.12d 7c 28 IX 28 E6 6b 53 ● Ouroboros Sport South > Overhang Rock
5.12d 7c 28 IX 28 E6 6b 50 ● Shoulder Season Sport South > Shanahan Crag
5.13a 7c+ 29 IX+ 29 E6 6c 87 ● Snake Watching Sport South > Overhang Rock
5.13a 7c+ 29 IX+ 29 E6 6c 17 ● Cornucopia Sport Central > Box
5.13a 7c+ 29 IX+ 29 E6 6c 139 ● Milk Bone Sport Central > Dinosaur Rock
5.13a 7c+ 29 IX+ 29 E6 6c 139 ● Ultrasaurus Sport Central > Dinosaur Rock
5.13a 7c+ 29 IX+ 29 E6 6c 157 ● $00pr kr33m Sport South > Slab
5.13a 7c+ 29 IX+ 29 E6 6c 32 ● Honey Badger Sport South > Overhang Rock
5.13a 7c+ 29 IX+ 29 E6 6c 26 ● Thulsa Doom Sport South > Overhang Rock
5.13a 7c+ 29 IX+ 29 E6 6c 55 ● Whipped Cream Sport South > Slab
5.13a 7c+ 29 IX+ 29 E6 6c 46 ● Pink Hyena aka Tuck n' Cover Sport South > Devil's Advocate
5.13a 7c+ 29 IX+ 29 E6 6c 17 ● The Human Experiment Sport 3 pitches South > Matron
5.13a 7c+ 29 IX+ 29 E6 6c 83 ● Uncle Dad Sport North > Hillbilly Rock
5.13a 7c+ 29 IX+ 29 E6 6c 19 ● The Perfect Storm Sport 2 pitches South > Seal Rock
5.13a 7c+ 29 IX+ 29 E6 6c 32 ● Heaven and Hell Sport North > Skunk Canyon > Ridge 1 aka Stairway…
5.13- 7c+ 29 IX+ 29 E7 6c 12 ● Release the Hostages Sport South > Overhang Rock
5.13a/b 8a 29 IX+ 29 E7 6c 77 ● s00kr33m Sport South > Slab
5.13a/b 8a 29 IX+ 29 E7 6c 19 ● Pen 15 Sport 2 pitches South > Slab
5.13a/b 8a 29 IX+ 29 E7 6c 12 ● Love Wins Sport 2 pitches South > Seal Rock
5.13b 8a 29 IX+ 30 E7 6c 63 ● Primate Sport South > Seal Rock
5.13b 8a 29 IX+ 30 E7 6c 19 ● Slave to the Rhythm Sport North > E Ironing Board
5.13b 8a 29 IX+ 30 E7 6c 43 ● Hasta La Hueco Sport 3 pitches South > Maiden
5.13b 8a 29 IX+ 30 E7 6c 13 ● The Yellow Door Sport 2 pitches South > Seal Rock
5.13b 8a 29 IX+ 30 E7 6c 36 ● The Hunger Sport South > Slab
5.13b 8a 29 IX+ 30 E7 6c 80 ● Super Tuscan Sport South > Seal Rock
5.13b 8a 29 IX+ 30 E7 6c 47 ● Purple Serpent Sport South > Devil's Advocate
5.13 8a 29 X- 30 E7 6c 12 ● Jurassic Park Sport 5 pitches Central > Dinosaur Rock
5.13b/c 8a+ 29 X- 30 E7 6c 11 ● Five Year Plan aka Space Time In… Trad Central > Backporch
5.13c 8a+ 30 X- 31 E7 7a 61 ● Choose Life Sport South > Seal Rock
5.13c 8a+ 30 X- 31 E7 7a 8 ● The Fiend Trad, Sport Central > Stonehenge
5.13c 8a+ 30 X- 31 E7 7a 20 ● Nephson Sport North > Hillbilly Rock
5.13c 8a+ 30 X- 31 E7 7a 12 ● Later Creators Sport North > Skunk Canyon > Ridge 1 aka Stairway…
5.13d 8b 31 X 32 E8 7a 17 ● No Philter Sport South > Seal Rock
5.14a 8b+ 32 X+ 32 E8 7a 35 ● Thunder Muscle Sport South > Seal Rock
5.14a 8b+ 32 X+ 32 E8 7a 13 ● I Am The Walrus Sport South > Seal Rock

● A7 -V1

North > Satellite Boulders > A-7 Boulder

271

V1-2 5 Boulder

● Original Grapple

North > Satellite Boulders > BBC Boulder

276

V4- 6B Boulder

● Spewbacca

South > Terrain Boulders (aka…

V4 6B Boulder

● Bongo (Fury)

South > Bongo Boulder

V6-7 7A+ PG13 Boulder

● Holly's Face (variation)

South > Terrain Boulders (aka…

V7- 7A+ PG13 Boulder

● The Gutter

North > Second Flatiron

V7 7A+ Boulder

● The Turning Point

North > Satellite Boulders > BBC Boulder

185

V8 7B Boulder

● [Redacted]

Central > Bear Canyon Bouldering

V8 7B Boulder

● Edging Edgio

Central > Elevated Boulder

V8 7B Boulder

● Fleshfest

North > Satellite Boulders > BBC Boulder

V9 7C Boulder

● Tower of Power

South > Terrain Boulders (aka…

V10 7C+ Boulder

● Freeway

North > Second Flatiron

1,296

5.0 2- 4 I 6 MM 1c Trad 6 pitches

● Yodeling Moves

North > Hammerhead

115

5.0 2- 4 I 6 MM 1c Trad 3 pitches

● Angel's Way

North > Skunk Canyon > Ridge 3 aka Angel's Way

291

5.2 3 8 II 8 D 2c Trad 8 pitches

● Fi Fun

Central > Fi

5.3 3+ 10 III 9 VD 3a R Trad 3 pitches

● East Face (Standard)

North > Third Flatiron

1,213

5.4 4a 12 IV 10 VD 3c Trad 8 pitches

● Winky Woo

North > Third Flatiron

5.4 4a 12 IV 10 VD 3c R Trad

● East Face North Side/Seal Rock

South > Seal Rock

284

5.4 4a 12 IV 10 VD 3c Trad 4 pitches

● North Arete

North > First Flatiron

277

5.4 4a 12 IV 10 VD 3c Trad 5 pitches

● Fandango

North > First Flatiron

243

5.5 4b 13 IV+ 11 MS 4a Trad 5 pitches

● Takin' Care of Business/ We…

North > Green Mtn Pinnacle

5.5 4b 13 IV+ 11 MS 4a Trad

● East Face/Challenger

North > Challenger

5.5 4b 13 IV+ 11 MS 4a R Trad 2 pitches

● East Face Left

North > Third Flatiron

154

5.5 4b 13 IV+ 11 MS 4a Trad 9 pitches

● Direct Route

North > First Flatiron

1,349

5.6 4c 14 V 12 S 4b R Trad 10 pitches

● North Face

South > Maiden

244

5.6 4c 14 V 12 S 4b R Trad 5 pitches

● Friday's Folly

North > Third Flatiron

117

5.7 5a 15 V+ 13 MVS 4b Trad

● Satan's Slab

North > Skunk Canyon > Ridge 2 aka Satan's Slab

5.8 5b 16 VI- 15 HVS 4c R Trad 8 pitches

● West Face

South > Matron

5.8 5b 16 VI- 15 HVS 4c R Trad, TR

● Rainbow Bridge

South > Fern Canyon > Nebel Horn Ridge

5.9 5c 17 VI 17 HVS 5a Trad, Sport

● Waiting For Columbus

North > Third Flatiron

5.10 6b 20 VII- 19 E2 5b Trad, Sport

● East Ridge

South > Maiden

145

5.10c 6b 20 VII 20 E2 5b Trad 5 pitches

● Velvet Elvis

North > E Ironing Board

5.11a 6c 22 VII+ 22 E3 5c Sport 2 pitches

● Happy Medium

South > Shanahan Crag

5.11a 6c 22 VII+ 22 E3 5c Sport

● Death and Transfiguration

North > Green Mtn Pinnacle

119

5.11b 6c 23 VIII- 23 E3 5c Trad

● Touch Monkey

Central > Der Zerkle

277

5.11b 6c 23 VIII- 23 E3 5c Sport, TR

● South Crack

South > Maiden

5.11b 6c 23 VIII- 23 E3 5c Trad

● Direct West Face a/k/a West…

North > Third Flatiron

5.11b 6c 23 VIII- 23 E3 5c Trad

● Wait For It...

South > Shanahan Crag

5.11b 6c 23 VIII- 23 E3 5c Sport

● West Overhang

South > Maiden

5.11b/c 6c+ 23 VIII- 24 E4 6a Trad 2 pitches

● Dream Street Rose

South > Maiden

5.11b/c 6c+ 23 VIII- 24 E4 6a Trad 2 pitches

● Cardboard Cowboy

Central > Hand

5.11c 6c+ 24 VIII- 24 E4 6a Sport

● The Gates of Delirium

South > Maiden

5.11c 6c+ 24 VIII- 24 E4 6a Sport

● Fluorescent Gray

South > Fern Canyon > E Ridge

5.11+ 7a 24 VIII 24 E4 6a PG13 Trad

● South Side of the Sky

Central > Finger Flatiron

5.11+ 7a 24 VIII 24 E4 6a Sport 2 pitches

● Castles Made of Sand

South > Fern Canyon > Fiddlehead

5.12a 7a+ 25 VIII+ 25 E5 6a Sport

● Just Another Boy's Climb

South > Slab

110

5.12a 7a+ 25 VIII+ 25 E5 6a Trad

● Patience Face

Central > Dinosaur Rock

208

5.12a 7a+ 25 VIII+ 25 E5 6a Sport, TR

● Birthstone

South > Shanahan Crag

5.12a 7a+ 25 VIII+ 25 E5 6a Sport

● Pile In the Sky

North > Third Flatiron

5.12- 7a+ 25 VIII+ 25 E5 6a Sport

● Yellow Christ

Central > Square Rock

5.12b 7b 26 VIII+ 26 E5 6b Trad, TR

● Undertow

South > Slab

254

5.12b 7b 26 VIII+ 26 E5 6b Sport

● Chains of Love

South > Fern Canyon > Fiddlehead

5.12b 7b 26 VIII+ 26 E5 6b Trad, Sport 2 pitches

● Discipline

Central > Box

5.12b 7b 26 VIII+ 26 E5 6b Sport

● Transgression

North > Green Mtn Pinnacle

5.12b 7b 26 VIII+ 26 E5 6b Trad

● The Shaft

Central > Dinosaur Rock

272

5.12b 7b 26 VIII+ 26 E5 6b Sport, TR

● Big Bruce

South > Goose

5.12b 7b 26 VIII+ 26 E5 6b Sport

● The Stoop

South > Seal Rock

5.12b 7b 26 VIII+ 26 E5 6b Sport

● North Side of the Sky

South > Maiden

5.12b 7b 26 VIII+ 26 E5 6b Sport 2 pitches

● Serpentine Dreams

South > Matron

5.12 7b+ 27 VIII+ 26 E6 6b Sport

● Power Bulge

Central > Hand

5.12c 7b+ 27 IX- 27 E6 6b Sport

● Film Noir

South > Slab

5.12c 7b+ 27 IX- 27 E6 6b Sport

● Maiden Voyage

South > Maiden

5.12c 7b+ 27 IX- 27 E6 6b Sport

● Strata-Caster

South > Overhang Rock

5.12c 7b+ 27 IX- 27 E6 6b Sport

● Skein

South > Goose

5.12c 7b+ 27 IX- 27 E6 6b Sport

● DK Superstar

South > Shanahan Crag

5.12c 7b+ 27 IX- 27 E6 6b Sport

● Ouroboros

South > Overhang Rock

5.12d 7c 28 IX 28 E6 6b Sport

● Shoulder Season

South > Shanahan Crag

5.12d 7c 28 IX 28 E6 6b Sport

● Snake Watching

South > Overhang Rock