Gregory Canyon, Range View and Flagstaff Trail Loop

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Boulder Open Space

Gregory Canyon, Range View and Flagstaff Trail Loop is a 5.8 kilometer heavily trafficked loop trail located near Boulder, Colorado that features beautiful wild flowers and is rated as moderate. The trail is primarily used for hiking, running, rock climbing, and nature trips. Dogs are also able to use this trail.

Distance: 5.8 km Elevation Gain: 365 m Route Type: Loop

dog friendly

hiking

nature trips

rock climbing

running

forest

views

wild flowers

wildlife

rocky

scramble

This is a great moderately challenging loop with excellent views throughout. The trail is steep but generally well-shaded through the Flatirons. Most of it consists of single-track trail, except for a brief stretch along an old roadbed near the top of Gregory Canyon Trail. There are rocky steps on both the Flagstaff and Gregory Canyon portions of the trail. Trails in the area are open to dogs but closed to bikes. Note: Parking adjacent to the loop requires a fee unless your vehicle is registered in Boulder County. Offline map is recommended. It can be easy to take a wrong turn onto the wrong trail.

hiking
2 days ago

Really pretty trial with a good incline at the beginning! Very shaded by trees! Great views at the top with lots of greenery and wildflowers but the trail can be a little confusing, my friend and I were lucky to have the all trails map pulled up in a few spots. Also you have to go over and cross the main road quite a few times and go through a parking lot in the middle of the hike which was kinda of strange but overall loved this hike and would do it again!

Nice views, some good climbing, and wildlife. Enjoyed it very much!

Nice day. We were a diverse group of 6 and all enjoyed

Amazing views from the top of Range View Trail!

hiking
8 days ago

This was a fun morning hike to do on my own! Tons of cars parked along the road but once on the trails I had plenty of space. Follow the map, it can be confusing in spots, but I had reception almost the whole way. Short drive for great views

Beautiful hike! Especially Gregory Canyon and Ridgeview. To do again we would turn back after we go onto Ridgeview instead of continuing on Flatirons Loop Trail as we didn't enjoy crossing the road so many times.

Awesome Hike!!! Lots of friendly people on a Saturday. Parking is free right now!:) Leg Burner for sure

hiking
16 days ago

fantastic short hike, be careful with rocks on Gregory trailhead and enjoy the wonderful view and flowers on the way. Range view trail offers beautiful views on the mountains. the only disappointment was on Flagstaff trail as you have to cross the road several times. other than that the loop is great. i highly recommend. note the parking is tiny so you may end up parking along the road.

Absolutely beautiful. I saw lots of wild flowers and birds. Steady incline on the way up. Would definitely recommend getting in early as some others said as parking fills up and Flagstaff trail does get pretty busy

17 days ago

Get in early as the parking fills up quickly. Nice trail that isn't hit as hard as others close by although you'll still see plenty of people. A mix of people with and without masks.

hiking
rocky
17 days ago

Hiked 5/16/20, started around 8am. Parking lot full and cars lined up the road. Parking fee waived due to COVID-19. Most people wore masks but some groups did not. Nice mix of city views on the front and end back ends of the trail, distant views of the range at the halfway point. We detoured and checked out the amphitheater too- pretty neat. Incline was steady, moderate difficulty is appropriate. Pretty good way to spend a Saturday morning without driving too far.

hiking
rocky
20 days ago

Weather was very NICE today around 9 am. Hardly anyone there which made it peaceful and you could hear the birds and water from the creek. ( gotta say I was disappointed to see a lot of people hiking without masks? ) all in all great hike... goes up hill in the beginning and levels out before Revelation trailhead. Well enjoy and let’s keep our trails open so please wear a mask!

Nice and steep the first half, which makes for a good workout, and pretty cool views. Second half is pretty lame as it becomes pretty obvious that you’re not far removed from the city. The trail also intersects flagstaff road several times. Get there early.

hiking
24 days ago

Hiked today (5/9). Parked at 9 AM and parking lot and road was completely full. If you’re on the road and there isn’t any parking, there is a turn around at the trailhead. Nice balance of shade and sun. Hike was busy but fun one. Would have enjoyed it more if it wasn’t as busy.

hiking
rocky
24 days ago

This was a great sunrise hike! It’s pretty rocky on the way up, but like everyone says the views are worth it. Get there early because the parking lot is small. I also recommend continuing onto long canyon trail all the way to flagstaff, about 6.5 miles total but worth taking 2 trails!

Amazing views the whole time. A bit steep going up

hiking
rocky
scramble
1 month ago

hiking
muddy
rocky
1 month ago

great hike beautiful views, dog friendly, light traffic today. notice for masks required on the trails.

hiking
rocky
1 month ago

hiking
muddy
1 month ago

more than 3.6, we recorded a little over 4 miles. good views, good incline, dog friendly. small amount of mud and even smaller amount of snow on 4.25

hiking
muddy
rocky
scramble
1 month ago

Awesome views all the way up, definitely an incline no matter which way you go. The south section of the loop is more rocky. keep an eye on the trail rocks, there are some amazing colors in them. A touch of snow on the trail today but nothing above the ankle.

Great trail. Good incline on the first half and great views about half way in. A little bit snowy/slushy at some parts but no spikes needed.

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