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Flagstaff Mountain

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31 mi 50 km of trail 9 Runs

Gems 1 Gem Easy Trails 10 Trails Intermediate Trails 23 Trails Hard Trails 2 Trails

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Gems in Flagstaff Mountain - 1

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gem Favorite Hills while going up Anemone from Red Rocks

Red Rocks

(24) Boulder, CO

Runs in Flagstaff Mountain - 9

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Favorite Hills while going up Anemone from Red Rocks
Difficult

Boulder Skyline Traverse

16.3 mi 26.3 km • Point to Point • 5,409 ft Ascent 1648.56 m Ascent

(77) Superior, CO
Favorite Sunrise from Mt Saintas
Intermediate

Sunshine Lion's Lair Loop

5.3 mi 8.5 km • Loop • 1,261 ft Ascent 384.48 m Ascent

(107) Boulder, CO
Favorite The "sighting disc" at the top of Green Mountain.  Line up the pins so you know what mountain you're looking at.
Difficult

Green Mountain via Ranger/Saddle Rock Loop

4.9 mi 7.9 km • Loop • 2,305 ft Ascent 702.5 m Ascent

(78) Boulder, CO
Favorite A snowy start of the Mesa Trail looking at the first Flatiron.
Difficult

Royal Arch Out and Back

3.3 mi 5.3 km • Out and Back • 1,311 ft Ascent 399.74 m Ascent

(148) Boulder, CO
Favorite Sunrise from Mt Saintas
Difficult

Mount Sanitas Loop

3.2 mi 5.2 km • Loop • 1,281 ft Ascent 390.4 m Ascent

(107) Boulder, CO
Favorite Morning at the Flatirons.
Intermediate

Welcome to Chautauqua

1.3 mi 2.2 km • Loop • 436 ft Ascent 132.79 m Ascent

(21) Boulder, CO
Favorite Boulder panorama from the Boy Scout Trail
Intermediate

Flagstaff Summit Loop

2.4 mi 3.9 km • Loop • 346 ft Ascent 105.4 m Ascent

(16) Boulder, CO
Favorite Morning at the Flatirons.
Difficult

Second-Third Flatiron Mesa Loop

2.2 mi 3.6 km • Loop • 716 ft Ascent 218.32 m Ascent

(2) Boulder, CO
Favorite The "sighting disc" at the top of Green Mountain.  Line up the pins so you know what mountain you're looking at.
Difficult

Green-Bear Combo from Chautauqua

13.5 mi 21.7 km • Loop • 4,512 ft Ascent 1375.35 m Ascent

(1) Boulder, CO

Trails in Flagstaff Mountain - 26

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1.3 mi 2.0 km #1Mount Sanitas Trail
Difficult
Boulder, CO
Difficult
1.3 mi 2.0 km Boulder, CO 19 
0.7 mi 1.1 km #2Boy Scout
Intermediate
Boulder, CO
Intermediate
0.7 mi 1.1 km Boulder, CO
1.2 mi 2.0 km #3Gregory Canyon
Intermediate
Boulder, CO
Intermediate
1.2 mi 2.0 km Boulder, CO
1.7 mi 2.7 km #4Flagstaff Trail
Intermediate
Boulder, CO
Intermediate
1.7 mi 2.7 km Boulder, CO 10 
0.4 mi 0.7 km #5Amphitheater Trail
Difficult
Boulder, CO
Difficult
0.4 mi 0.7 km Boulder, CO
0.5 mi 0.8 km #6Red Rocks Spur
Difficult
Boulder, CO
Difficult
0.5 mi 0.8 km Boulder, CO
0.9 mi 1.5 km #7Viewpoint Trail
Difficult
Boulder, CO
Difficult
0.9 mi 1.5 km Boulder, CO
0.4 mi 0.7 km #8Anemone Trail
Intermediate
Boulder, CO
Intermediate
0.4 mi 0.7 km Boulder, CO 12 
8.2 mi 13.3 km #9Boulder Creek Path
Easy
Boulder, CO
Easy
8.2 mi 13.3 km Boulder, CO 10 
0.6 mi 1.0 km #10Chautauqua Trail
Intermediate
Boulder, CO
Intermediate
0.6 mi 1.0 km Boulder, CO
0.6 mi 0.9 km #11Red Rocks Trail
Intermediate
Boulder, CO
Intermediate
0.6 mi 0.9 km Boulder, CO 10 
1.2 mi 1.9 km #12Enchanted Mesa Trail
Intermediate
Boulder, CO
Intermediate
1.2 mi 1.9 km Boulder, CO
0.1 mi 0.2 km #13May's Point
Easy
Boulder, CO
Easy
0.1 mi 0.2 km Boulder, CO
0.6 mi 1.0 km #14Range View
Intermediate
Boulder, CO
Intermediate
0.6 mi 1.0 km Boulder, CO
1.1 mi 1.8 km #15Saddle Rock Trail
Difficult
Boulder, CO
Difficult
1.1 mi 1.8 km Boulder, CO
1.2 mi 1.9 km #16Ranger Trail
Difficult
Boulder, CO
Difficult
1.2 mi 1.9 km Boulder, CO
1.8 mi 2.8 km #17Long Canyon Trail
Intermediate
Boulder, CO
Intermediate
1.8 mi 2.8 km Boulder, CO
0.9 mi 1.4 km #18Tenderfoot Trail
Intermediate
Boulder, CO
Intermediate
0.9 mi 1.4 km Boulder, CO
2.6 mi 4.2 km #19Chapman Drive
Intermediate
Boulder, CO
Intermediate
2.6 mi 4.2 km Boulder, CO
0.4 mi 0.7 km #20Bluebell Mesa
Intermediate
Boulder, CO
Intermediate
0.4 mi 0.7 km Boulder, CO
0.7 mi 1.1 km #21Bluebell-Baird Trail
Intermediate
Boulder, CO
Intermediate
0.7 mi 1.1 km Boulder, CO
1.2 mi 2.0 km #22Sunshine Canyon Trail
Easy
Boulder, CO
Easy
1.2 mi 2.0 km Boulder, CO
0.6 mi 0.9 km #23Ute Trail
Intermediate
Boulder, CO
Intermediate
0.6 mi 0.9 km Boulder, CO
0.5 mi 0.7 km #24McClintock Upper
Intermediate
Boulder, CO
Intermediate
0.5 mi 0.7 km Boulder, CO
1.0 mi 1.5 km #25Bluebell Road
Intermediate
Boulder, CO
Intermediate
1.0 mi 1.5 km Boulder, CO
0.5 mi 0.9 km #26Baseline Trail
Easy
Boulder, CO
Easy
0.5 mi 0.9 km Boulder, CO

Photos of Flagstaff Mountain - 79

Trail Run Project is built by runners like you. Add Your Photos

Great running around Flagstaff
Mar 26, 2015 near Boulder, CO
Hills while going up Anemone from Red Rocks
Jun 23, 2018 near Boulder, CO
Summer wildflowers bloom on Chapman Drive next to trail damage from the Boulder Floods.
May 6, 2016 near Boulder, CO
Beautiful path in Boulder Canyon
May 10, 2018 near Boulder, CO
Looking towards Boulder
Jun 23, 2018 near Boulder, CO
Boulder Creek Path
May 10, 2018 near Boulder, CO
Running up Flagstaff
Mar 26, 2015 near Boulder, CO
Boulder Colorado - Winter Wonderland
Jan 2, 2015 near Boulder, CO

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