We noticed that you're using an unsupported browser. The TripAdvisor website may not display properly.We support the following browsers:
Windows: Internet Explorer, Mozilla Firefox, Google Chrome. Mac: Safari.
Review Highlights
Great overlook at Lost Gulch

We took the road up to the Lost Gulch overlook, lots of winding turns, picnic spots, hikes and... read more

Reviewed 2 weeks ago
Kenora, Canada
Great hike!

Flagstaff Mountain was a great, fairly easy hike. Thew views were incredible though, especially... read more

Reviewed 2 weeks ago
Daphne, Alabama
Read all 214 reviews
Map updates are paused. Zoom in to see updated info.
Reset zoom
Updating Map...
Located close to downtown Boulder, this mountain offers climbing and hiking trails with sweeping views of the city.
  • Excellent73%
  • Very good23%
  • Average2%
  • Poor1%
  • Terrible1%
Travellers talk about
“short drive” (12 reviews)
“winding road” (6 reviews)
Boulder, CO
+1 303-441-3440
Write a Review
Reviews (214)
Traveller rating
Traveller type
Time of year

1 - 10 of 207 reviews

Reviewed 2 weeks ago

We took the road up to the Lost Gulch overlook, lots of winding turns, picnic spots, hikes and great views. From the parking spot it is a short walk to the rocks or there are benches to sit on and enjoy the view. Very pretty,...More

Thank samanthandtravismom
Reviewed 2 weeks ago

Flagstaff Mountain was a great, fairly easy hike. Thew views were incredible though, especially considering how manageable the hike was.

Thank theoriginalicecr2017
Reviewed 3 weeks ago

An unbelievable, spectacular and beautiful place to visit and share with friends and family, even has picnic areas to enjoy

Thank Emma S
Reviewed 5 weeks ago

Well worth the easy trip up to the top of the mountain. Several great picnic areas to go along with stunning long range views. There is a small amphitheater on the top that overlooks the town of Boulder. If you wake up early, visit during...More

Thank cory w
Reviewed 6 August 2017 via mobile

Beautiful views of boulder. Steep hike, however you can drive up most of the way on some very windy roads. Watch for bikers, there are a lot of them. Simply breathtaking!

Thank kkellylady22
Reviewed 21 July 2017

The drive can be crowded with bikes and tight turns but there are several pull offs that have stunning views and nice breezes on hot days. Pay attention to 'fee' parking areas or you may end up with an unwelcome ticket. Lots of areas to...More

Thank ms9331
Reviewed 10 July 2017 via mobile

I love hiking up this mountain trail and have been doing it since I was a young girl. It is 2 miles from the base trail to the top with sections of stair climb and some light grade in between. The views are great of...More

Thank skygirl2
Reviewed 6 July 2017 via mobile

While visiting Boulder we took a drive up Flagstaff Mountain. It was a nice easy drive sharing the road with motorcycles and bikes. I give the cyclist credit because you have to be dedicated and focused for that ride. The views were spectacular from the...More

Thank CR1325
Reviewed 22 June 2017

A great cycle climb was rewarded with stunning views of the snow capped peaks around Mount Audubon and a more close range view of sweet Boulder Lake

Thank Tauny S
Reviewed 21 June 2017

I came here years ago and Flagstaff mountain was one of the most beautiful places, but now the city of Boulder seems to no longer be policing the graffiti that is rampant on this mountain. Also this isn't place for children and while walking around...More

Thank Kendra B
Nearby Restaurants
Brasserie Ten Ten
869 reviews
2.71 km away
The Mediterranean Restaurant
1,036 reviews
2.71 km away
Jax Fish House & Oyster Bar
321 reviews
2.70 km away
Flagstaff House Restaurant
384 reviews
1.28 km away
Nearby Attractions
Chautauqua Park
980 reviews
2.27 km away
Pearl Street Mall
2,082 reviews
1.75 km away
Mount Sanitas Trail
90 reviews
2.51 km away
Ask a question
Questions & Answers
1 March 2017|
AnswerShow all 3 answers
Response from J R | Reviewed this property |
I was there a week or so ago and there were just tiny patches of snow here and there. The road up there is very windy and steep in spots, but we didn't have any problem in our rental sedan. Our biggest concern were the... More
14 July 2016|
Response from emilyg28 | Reviewed this property |
Camping isn't allowed in Boulder's Open Space and Mountain Parks area, which is the area Flagstaff is in. If you do a web search for camping near Flagstaff you can find some nearby (though not easily walkable) places.