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Flagstaff double summit

📍
Flagstaff Road, Central Boulder - University Hill, Boulder, Boulder County, Colorado, 80802, United States
Cat. 2Flag this climb

Estimated Climb Time

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Climb Profile

Altitude builds left to right while colour shows gradient severity for each part of Flagstaff double summit.

1740 m1940 m2145 m2345 m3.6% from 0 m to 22 m4.0% from 22 m to 45 m3.1% from 45 m to 68 m1.8% from 68 m to 90 m3.9% from 90 m to 108 m15.9% from 108 m to 130 m2.0% from 130 m to 150 m-1.8% from 150 m to 161 m-0.9% from 161 m to 183 m4.3% from 183 m to 204 m5.9% from 204 m to 226 m8.9% from 226 m to 249 m9.5% from 249 m to 271 m10.4% from 271 m to 292 m9.8% from 292 m to 314 m10.6% from 314 m to 334 m11.2% from 334 m to 356 m10.6% from 356 m to 376 m10.8% from 376 m to 398 m10.3% from 398 m to 418 m10.0% from 418 m to 440 m10.4% from 440 m to 462 m10.4% from 462 m to 482 m10.5% from 482 m to 502 m9.7% from 502 m to 523 m9.4% from 523 m to 543 m8.3% from 543 m to 564 m7.1% from 564 m to 586 m6.3% from 586 m to 609 m5.6% from 609 m to 630 m6.0% from 630 m to 652 m8.4% from 652 m to 674 m9.4% from 674 m to 696 m10.2% from 696 m to 716 m9.5% from 716 m to 737 m9.9% from 737 m to 758 m10.4% from 758 m to 780 m10.5% from 780 m to 801 m9.8% from 801 m to 821 m8.7% from 821 m to 843 m8.8% from 843 m to 863 m10.6% from 863 m to 886 m11.2% from 886 m to 907 m10.4% from 907 m to 929 m13.4% from 929 m to 950 m13.0% from 950 m to 970 m7.8% from 970 m to 991 m8.0% from 991 m to 1.0 km6.2% from 1.0 km to 1.0 km7.8% from 1.0 km to 1.0 km7.9% from 1.0 km to 1.1 km8.4% from 1.1 km to 1.1 km9.1% from 1.1 km to 1.1 km9.4% from 1.1 km to 1.1 km7.9% from 1.1 km to 1.2 km8.4% from 1.2 km to 1.2 km7.5% from 1.2 km to 1.2 km6.9% from 1.2 km to 1.2 km7.5% from 1.2 km to 1.2 km6.9% from 1.2 km to 1.3 km6.0% from 1.3 km to 1.3 km5.4% from 1.3 km to 1.3 km5.3% from 1.3 km to 1.3 km6.0% from 1.3 km to 1.3 km6.3% from 1.3 km to 1.4 km5.2% from 1.4 km to 1.4 km4.7% from 1.4 km to 1.4 km4.7% from 1.4 km to 1.4 km4.8% from 1.4 km to 1.5 km5.0% from 1.5 km to 1.5 km5.0% from 1.5 km to 1.5 km5.4% from 1.5 km to 1.5 km4.9% from 1.5 km to 1.5 km6.5% from 1.5 km to 1.6 km9.2% from 1.6 km to 1.6 km9.0% from 1.6 km to 1.6 km8.8% from 1.6 km to 1.6 km8.6% from 1.6 km to 1.6 km8.1% from 1.6 km to 1.7 km9.7% from 1.7 km to 1.7 km9.3% from 1.7 km to 1.7 km8.8% from 1.7 km to 1.7 km7.5% from 1.7 km to 1.8 km7.1% from 1.8 km to 1.8 km5.5% from 1.8 km to 1.8 km5.3% from 1.8 km to 1.8 km5.0% from 1.8 km to 1.8 km5.6% from 1.8 km to 1.9 km6.2% from 1.9 km to 1.9 km7.0% from 1.9 km to 1.9 km6.8% from 1.9 km to 1.9 km6.9% from 1.9 km to 1.9 km5.2% from 1.9 km to 2.0 km6.3% from 2.0 km to 2.0 km6.8% from 2.0 km to 2.0 km6.5% from 2.0 km to 2.0 km7.2% from 2.0 km to 2.0 km8.0% from 2.0 km to 2.1 km8.4% from 2.1 km to 2.1 km7.7% from 2.1 km to 2.1 km7.0% from 2.1 km to 2.1 km6.4% from 2.1 km to 2.2 km4.6% from 2.2 km to 2.2 km3.2% from 2.2 km to 2.2 km2.3% from 2.2 km to 2.2 km4.1% from 2.2 km to 2.2 km3.4% from 2.2 km to 2.3 km3.3% from 2.3 km to 2.3 km8.9% from 2.3 km to 2.3 km10.5% from 2.3 km to 2.3 km10.9% from 2.3 km to 2.3 km9.9% from 2.3 km to 2.4 km2.4% from 2.4 km to 2.4 km3.0% from 2.4 km to 2.4 km2.6% from 2.4 km to 2.4 km4.9% from 2.4 km to 2.4 km7.5% from 2.4 km to 2.5 km3.8% from 2.5 km to 2.5 km4.1% from 2.5 km to 2.5 km5.9% from 2.5 km to 2.5 km6.4% from 2.5 km to 2.6 km6.8% from 2.6 km to 2.6 km6.9% from 2.6 km to 2.6 km6.3% from 2.6 km to 2.6 km4.8% from 2.6 km to 2.6 km4.2% from 2.6 km to 2.6 km4.2% from 2.6 km to 2.7 km4.9% from 2.7 km to 2.7 km6.4% from 2.7 km to 2.7 km5.0% from 2.7 km to 2.7 km3.1% from 2.7 km to 2.7 km1.0% from 2.7 km to 2.8 km1.3% from 2.8 km to 2.8 km1.0% from 2.8 km to 2.8 km1.8% from 2.8 km to 2.8 km10.4% from 2.8 km to 2.8 km11.1% from 2.8 km to 2.9 km10.2% from 2.9 km to 2.9 km9.8% from 2.9 km to 2.9 km8.0% from 2.9 km to 2.9 km5.9% from 2.9 km to 3.0 km6.0% from 3.0 km to 3.0 km7.3% from 3.0 km to 3.0 km8.9% from 3.0 km to 3.0 km8.5% from 3.0 km to 3.0 km7.7% from 3.0 km to 3.1 km7.4% from 3.1 km to 3.1 km6.8% from 3.1 km to 3.1 km9.7% from 3.1 km to 3.1 km6.4% from 3.1 km to 3.1 km7.2% from 3.1 km to 3.1 km8.6% from 3.1 km to 3.2 km8.2% from 3.2 km to 3.2 km8.3% from 3.2 km to 3.2 km9.0% from 3.2 km to 3.2 km8.2% from 3.2 km to 3.2 km7.6% from 3.2 km to 3.3 km7.5% from 3.3 km to 3.3 km6.8% from 3.3 km to 3.3 km7.0% from 3.3 km to 3.3 km7.4% from 3.3 km to 3.3 km8.0% from 3.3 km to 3.4 km8.0% from 3.4 km to 3.4 km9.1% from 3.4 km to 3.4 km8.0% from 3.4 km to 3.4 km5.0% from 3.4 km to 3.5 km5.0% from 3.5 km to 3.5 km4.7% from 3.5 km to 3.5 km5.0% from 3.5 km to 3.5 km5.4% from 3.5 km to 3.5 km5.9% from 3.5 km to 3.6 km5.6% from 3.6 km to 3.6 km4.0% from 3.6 km to 3.6 km3.4% from 3.6 km to 3.6 km4.0% from 3.6 km to 3.6 km4.3% from 3.6 km to 3.7 km5.8% from 3.7 km to 3.7 km7.1% from 3.7 km to 3.7 km7.6% from 3.7 km to 3.7 km7.6% from 3.7 km to 3.8 km7.4% from 3.8 km to 3.8 km7.1% from 3.8 km to 3.8 km6.6% from 3.8 km to 3.8 km7.0% from 3.8 km to 3.8 km7.2% from 3.8 km to 3.9 km6.7% from 3.9 km to 3.9 km8.3% from 3.9 km to 3.9 km5.4% from 3.9 km to 3.9 km4.9% from 3.9 km to 3.9 km4.0% from 3.9 km to 4.0 km3.4% from 4.0 km to 4.0 km4.0% from 4.0 km to 4.0 km3.4% from 4.0 km to 4.0 km3.7% from 4.0 km to 4.0 km2.6% from 4.0 km to 4.1 km2.2% from 4.1 km to 4.1 km3.3% from 4.1 km to 4.1 km3.8% from 4.1 km to 4.1 km4.5% from 4.1 km to 4.2 km4.4% from 4.2 km to 4.2 km4.2% from 4.2 km to 4.2 km3.8% from 4.2 km to 4.2 km3.7% from 4.2 km to 4.2 km2.9% from 4.2 km to 4.2 km1.9% from 4.2 km to 4.3 km1.3% from 4.3 km to 4.3 km1.7% from 4.3 km to 4.3 km2.2% from 4.3 km to 4.3 km2.7% from 4.3 km to 4.3 km4.2% from 4.3 km to 4.4 km6.2% from 4.4 km to 4.4 km7.5% from 4.4 km to 4.4 km5.5% from 4.4 km to 4.4 km4.5% from 4.4 km to 4.5 km5.1% from 4.5 km to 4.5 km4.9% from 4.5 km to 4.5 km10.4% from 4.5 km to 4.5 km11.3% from 4.5 km to 4.5 km7.8% from 4.5 km to 4.6 km6.0% from 4.6 km to 4.6 km5.2% from 4.6 km to 4.6 km6.3% from 4.6 km to 4.6 km7.7% from 4.6 km to 4.7 km8.2% from 4.7 km to 4.7 km9.6% from 4.7 km to 4.7 km7.7% from 4.7 km to 4.7 km4.5% from 4.7 km to 4.7 km14.2% from 4.7 km to 4.8 km12.0% from 4.8 km to 4.8 km11.3% from 4.8 km to 4.8 km11.4% from 4.8 km to 4.8 km8.8% from 4.8 km to 4.8 km9.6% from 4.8 km to 4.9 km7.6% from 4.9 km to 4.9 km5.8% from 4.9 km to 4.9 km5.2% from 4.9 km to 4.9 km5.9% from 4.9 km to 4.9 km6.6% from 4.9 km to 5.0 km4.0% from 5.0 km to 5.0 km4.6% from 5.0 km to 5.0 km5.2% from 5.0 km to 5.0 km4.9% from 5.0 km to 5.1 km5.7% from 5.1 km to 5.1 km5.2% from 5.1 km to 5.1 km4.2% from 5.1 km to 5.1 km5.1% from 5.1 km to 5.1 km4.3% from 5.1 km to 5.2 km4.6% from 5.2 km to 5.2 km5.7% from 5.2 km to 5.2 km5.0% from 5.2 km to 5.2 km4.8% from 5.2 km to 5.3 km4.3% from 5.3 km to 5.3 km4.8% from 5.3 km to 5.3 km3.7% from 5.3 km to 5.3 km3.3% from 5.3 km to 5.3 km2.9% from 5.3 km to 5.4 km1.3% from 5.4 km to 5.4 km0.4% from 5.4 km to 5.4 km0.9% from 5.4 km to 5.4 km0.5% from 5.4 km to 5.5 km0.0% from 5.5 km to 5.5 km0.0% from 5.5 km to 5.5 km1.7% from 5.5 km to 5.5 km0.0% from 5.5 km to 5.5 km0.4% from 5.5 km to 5.5 km0.0% from 5.5 km to 5.5 km0.0% from 5.5 km to 5.5 km0.0% from 5.5 km to 5.6 km0.0% from 5.6 km to 5.6 km0.0% from 5.6 km to 5.6 km-0.4% from 5.6 km to 5.6 km-2.9% from 5.6 km to 5.6 km-0.9% from 5.6 km to 5.7 km-1.3% from 5.7 km to 5.7 km-8.2% from 5.7 km to 5.7 km2.6% from 5.7 km to 5.7 km11.7% from 5.7 km to 5.7 km12.7% from 5.7 km to 5.8 km6.3% from 5.8 km to 5.8 km-0.9% from 5.8 km to 5.8 km-2.8% from 5.8 km to 5.8 km-0.7% from 5.8 km to 5.8 km0.0% from 5.8 km to 5.9 km0.0% from 5.9 km to 5.9 km0.0% from 5.9 km to 5.9 km1.3% from 5.9 km to 5.9 km3.7% from 5.9 km to 5.9 km6.4% from 5.9 km to 6.0 km8.2% from 6.0 km to 6.0 km0.0% from 6.0 km to 6.0 km0.0% from 6.0 km to 6.0 km0.0% from 6.0 km to 6.0 km-3.6% from 6.0 km to 6.0 km2.8% from 6.0 km to 6.0 km-105.8% from 6.0 km to 6.0 km0.0% from 6.0 km to 6.0 km1.2% from 6.0 km to 6.1 km2.6% from 6.1 km to 6.1 km0.9% from 6.1 km to 6.1 km0.0% from 6.1 km to 6.1 km0.0% from 6.1 km to 6.1 km0.0% from 6.1 km to 6.2 km0.0% from 6.2 km to 6.2 km-0.5% from 6.2 km to 6.2 km-0.5% from 6.2 km to 6.2 km0.0% from 6.2 km to 6.2 km0.0% from 6.2 km to 6.3 km0.0% from 6.3 km to 6.3 km-0.9% from 6.3 km to 6.3 km-0.5% from 6.3 km to 6.3 km-0.4% from 6.3 km to 6.3 km-1.1% from 6.3 km to 6.3 km-2.4% from 6.3 km to 6.4 km-3.7% from 6.4 km to 6.4 km-3.0% from 6.4 km to 6.4 km-4.9% from 6.4 km to 6.4 km-4.2% from 6.4 km to 6.5 km-5.4% from 6.5 km to 6.5 km-4.8% from 6.5 km to 6.5 km-5.8% from 6.5 km to 6.5 km-3.8% from 6.5 km to 6.6 km-4.7% from 6.6 km to 6.6 km-4.3% from 6.6 km to 6.6 km-5.6% from 6.6 km to 6.6 km-5.8% from 6.6 km to 6.7 km-4.4% from 6.7 km to 6.7 km-5.4% from 6.7 km to 6.7 km-4.8% from 6.7 km to 6.7 km-4.8% from 6.7 km to 6.7 km-7.0% from 6.7 km to 6.8 km-5.6% from 6.8 km to 6.8 km-5.9% from 6.8 km to 6.8 km-7.5% from 6.8 km to 6.9 km-8.8% from 6.9 km to 6.9 km-10.7% from 6.9 km to 6.9 km-10.2% from 6.9 km to 6.9 km-13.2% from 6.9 km to 6.9 km-11.3% from 6.9 km to 7.0 km10.6% from 7.0 km to 7.0 km15.6% from 7.0 km to 7.0 km9.9% from 7.0 km to 7.0 km12.8% from 7.0 km to 7.0 km11.8% from 7.0 km to 7.1 km13.1% from 7.1 km to 7.1 km13.0% from 7.1 km to 7.1 km12.2% from 7.1 km to 7.1 km11.0% from 7.1 km to 7.1 km10.5% from 7.1 km to 7.2 km9.0% from 7.2 km to 7.2 km10.0% from 7.2 km to 7.2 km11.9% from 7.2 km to 7.2 km12.9% from 7.2 km to 7.2 km14.7% from 7.2 km to 7.3 km14.9% from 7.3 km to 7.3 km13.0% from 7.3 km to 7.3 km11.3% from 7.3 km to 7.3 km11.5% from 7.3 km to 7.4 km11.4% from 7.4 km to 7.4 km11.8% from 7.4 km to 7.4 km10.6% from 7.4 km to 7.4 km11.3% from 7.4 km to 7.4 km11.9% from 7.4 km to 7.5 km12.4% from 7.5 km to 7.5 km12.9% from 7.5 km to 7.5 km14.1% from 7.5 km to 7.5 km14.8% from 7.5 km to 7.5 km14.9% from 7.5 km to 7.6 km15.0% from 7.6 km to 7.6 km14.0% from 7.6 km to 7.6 km13.9% from 7.6 km to 7.6 km12.6% from 7.6 km to 7.6 km12.7% from 7.6 km to 7.6 km12.0% from 7.6 km to 7.7 km11.5% from 7.7 km to 7.7 km11.8% from 7.7 km to 7.7 km11.3% from 7.7 km to 7.7 km10.9% from 7.7 km to 7.7 km11.5% from 7.7 km to 7.8 km11.4% from 7.8 km to 7.8 km11.5% from 7.8 km to 7.8 km11.7% from 7.8 km to 7.8 km11.4% from 7.8 km to 7.9 km11.2% from 7.9 km to 7.9 km11.2% from 7.9 km to 7.9 km10.7% from 7.9 km to 7.9 km10.6% from 7.9 km to 7.9 km11.0% from 7.9 km to 8.0 km11.2% from 8.0 km to 8.0 km11.4% from 8.0 km to 8.0 km10.5% from 8.0 km to 8.0 km10.7% from 8.0 km to 8.0 km9.4% from 8.0 km to 8.1 km8.7% from 8.1 km to 8.1 km10.4% from 8.1 km to 8.1 km15.3% from 8.1 km to 8.1 km15.8% from 8.1 km to 8.1 km16.3% from 8.1 km to 8.2 km11.7% from 8.2 km to 8.2 km10.5% from 8.2 km to 8.2 km11.0% from 8.2 km to 8.2 km12.6% from 8.2 km to 8.2 km15.5% from 8.2 km to 8.2 km18.2% from 8.2 km to 8.3 km17.6% from 8.3 km to 8.3 km18.1% from 8.3 km to 8.3 km15.7% from 8.3 km to 8.3 km13.8% from 8.3 km to 8.3 km11.6% from 8.3 km to 8.3 km9.6% from 8.3 km to 8.4 km11.3% from 8.4 km to 8.4 km8.8% from 8.4 km to 8.4 km7.9% from 8.4 km to 8.4 km6.9% from 8.4 km to 8.4 km6.7% from 8.4 km to 8.4 km5.5% from 8.4 km to 8.5 km4.8% from 8.5 km to 8.5 km7.4% from 8.5 km to 8.5 km14.3% from 8.5 km to 8.5 km356.7% from 8.5 km to 8.5 km9.9% from 8.5 km to 8.5 km9.2% from 8.5 km to 8.6 km8.7% from 8.6 km to 8.6 km8.3% from 8.6 km to 8.6 km7.2% from 8.6 km to 8.6 km7.0% from 8.6 km to 8.7 km6.9% from 8.7 km to 8.7 km7.0% from 8.7 km to 8.7 km6.7% from 8.7 km to 8.7 km6.6% from 8.7 km to 8.7 km6.6% from 8.7 km to 8.8 km7.1% from 8.8 km to 8.8 km7.8% from 8.8 km to 8.8 km8.3% from 8.8 km to 8.8 km8.3% from 8.8 km to 8.8 km7.8% from 8.8 km to 8.9 km8.3% from 8.9 km to 8.9 km9.2% from 8.9 km to 8.9 km11.0% from 8.9 km to 8.9 km10.7% from 8.9 km to 9.0 km9.1% from 9.0 km to 9.0 km8.7% from 9.0 km to 9.0 km7.7% from 9.0 km to 9.0 km7.6% from 9.0 km to 9.0 km8.0% from 9.0 km to 9.1 km8.5% from 9.1 km to 9.1 km8.9% from 9.1 km to 9.1 km9.4% from 9.1 km to 9.1 km9.5% from 9.1 km to 9.1 km8.9% from 9.1 km to 9.2 km9.5% from 9.2 km to 9.2 km9.4% from 9.2 km to 9.2 km11.0% from 9.2 km to 9.2 km10.5% from 9.2 km to 9.2 km11.3% from 9.2 km to 9.2 km9.0% from 9.2 km to 9.3 km10.7% from 9.3 km to 9.3 km8.6% from 9.3 km to 9.3 km10.3% from 9.3 km to 9.3 km13.4% from 9.3 km to 9.3 km14.5% from 9.3 km to 9.3 km12.3% from 9.3 km to 9.4 km11.7% from 9.4 km to 9.4 km10.8% from 9.4 km to 9.4 km9.8% from 9.4 km to 9.4 km9.4% from 9.4 km to 9.5 km8.6% from 9.5 km to 9.5 km9.0% from 9.5 km to 9.5 km10.8% from 9.5 km to 9.5 km9.8% from 9.5 km to 9.5 km8.8% from 9.5 km to 9.6 km12.4% from 9.6 km to 9.6 km8%6%4%4%11%0 m2 km4 km6 km8 km
Gradient key0-3%3-6%6-9%9-12%12-15%15%+

Climb Stats

Combined metric and imperial stats for quick route planning.

Climb categoryCategory 2
Distance9.58 km / 5.96 miles
Elevation gain603.8 m / 1,981 ft
Average gradient6.3%
Maximum gradient28.7%
Elevation high2,343.9 m / 7,690 ft
Elevation low1,740.1 m / 5,709 ft
Climb difficulty score60,381.09

Similar Climbs Nearby

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Tip: rotate your phone to landscape and swipe the table sideways to reveal the full set of climb details.

ClimbLengthGradientAscent
Pro Peloton Grand FUNdo Climb #1
Boulder, Boulder County
9.19 km6.5%618 m
Better Black Flag segment
Boulder, Boulder County
9.44 km6%564 m
Flagstaff - 6th to the very top
Boulder, Boulder County
9.36 km6.6%648 m
Flagstaff Park to Peak
Boulder, Boulder County
9.53 km6.9%659 m
hour of power
Boulder, Boulder County
9.39 km6.9%664 m

Climb Rank

How does this climb compare against every other climb in the world?

🗺

This climb ranks 22,461st out of 2,710,652 worldwide cycling climbs.

🧮

Ranked as the 1,472nd most difficult cycling climb of all 337,250 climbs in United States.

📉

Places 244th out of 13,296 cycling climbs in Colorado.

⚖

Ranks 71st out of 1,886 cycling climbs in Boulder County.

⚖

Ranking 32nd out of 694 cycling climbs in Boulder.

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