Help keep our trails and parks open during COVID-19 by committing to social distancing. Some trails or park services may be closed this weekend so check with local authorities before heading out.
Learn more

Antelope, Bitterbrush, Nelson Loop is a 6.6 mile heavily trafficked loop trail located near Lyons, Colorado that offers the chance to see wildlife and is good for all skill levels. The trail offers a number of activity options and is best used from April until September.

Length 6.6 mi Elevation gain 1,213 ft Route type Loop

Hiking

Mountain biking

Nature trips

Walking

Bird watching

Views

Wildlife

No dogs

Description
Waypoints (0)

The Nelson Loop may be closed due to trail conditions. Check with the park before visiting: https://www.bouldercounty.org/open-space/parks-and-trails/hall-ranch/

Weather
UV Index
Daylight
Reviews (63)
Photos (140)
Recordings (58)
Completed (121)
Scott Vanderpoel
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarJuly 20, 2020
Hiking

didn't make it to the Nelson loop, but very pretty with a nice Lyons-esque meadow after the initial climb. cons: lots of bikers

Tara Schoenherr
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarJuly 9, 2020
Hiking

I enjoy this loop greatly and always feel like there is a lot to see. You definitely have to know how to share with bikers but generally, folks are very respectful and on a weekday you will have room to breathe in my experience.

Bronwyn Phillips
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarMay 31, 2020
Hiking

Good trail, easy to follow. Very green right now, wildflowers are everywhere. Big mountain biker trail, so be aware of that. Wouldn’t recommend wearing headphones since most of the bikers don’t let you know they are coming until they are right on top of you. Definitely go early to avoid bigger crowds and heat.

Sally Hanley
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarMay 23, 2020
Hiking

Beautiful trail with views of Longs Peak from the Nelson Loop. Tons of mountain bikers. There is construction on Apple Valley Road right now so there's a slight detour to get to the trailhead.

Maddy King
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMay 17, 2020
Hiking

Beautiful trail from start to finish. Tons of mtn bikers to the point it was a bit disruptive to the hike

View Maddy's Recording
Bailey Eddy
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarApril 5, 2020
Hiking

Antelope to bitterbrush was a decent climb and rocky, bitterbrush to Nelson was smooth with recent trail love on drains, Northern exposure on Nelson Loop was a bit muddy in areas, but excellent, recent trail love on the drains—Thank you

Arthur Best
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarApril 4, 2020
Hiking

Completed on 3/28. Muddy in spots but only needed boots.

Chris Gosline
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarOctober 20, 2019
Hiking

This was a good trail. Easy to follow. There are trails with prettier views, but this wasnt bad. There were a lot of bikers, but they were all respectful of the right of way.

Chris Moody
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarJuly 25, 2019
Hiking

Beautiful. Boulder county parks dept and Boulder youth core were out working on a portion of it. Lots of mountain bikes out. Probably 70 percent bikers 30 percent hikers. Trails for bikes seem like a good mix of Rocky areas then a lot of flowing smooth trails with berms at some of the turns. Limited parking to like 8 cars and a detour needed at the time from 36 that added about 5 minutes to get there from the east. At 10am there were 2 cars. 1230pm on a Friday lot was full with several cars passing through

View Chris's Recording
Sam G
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMay 29, 2019
Hiking

Antelope, Bitterbrush all the way through Nelson Loop was all open as of end of May 2019. Pretty rolling hills and shrub forest with the open spaces as green as it gets this time of year. Quiet hike, a mountain biker every once in a while, lots of mule deer all the way through.

View Sam's Recording
Debby R.
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarMarch 24, 2019
Running

3/24/19 - Nelson Loop still closed. Parts of Antelope were pretty sloppy.

Jamison Paul
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarJanuary 27, 2019
Hiking

The first mile or so has the most incline. The Nelson Loop was closed apparently so I didn't proceed pass the Trail Closed sign. Maybe I should have, it didn't seem to stop anybody else. Oh well, next time. Trail is getting wet and sloppy from melting snow. I saw multiple cougar tracks and a ton of deer. I am glad I went on a breezy cool January afternoon because there really isn't much tree coverage.

Matt Eaton
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMay 9, 2018
Mountain biking

The ascent up Antelope was challenging but after a bit of climbing there's some fun flowing riding up top. All of the bikers and hikers I encountered were very respectful. I also hiked the trail a few weeks prior to biking it and all of the bikers were respectful. I quickly recognized that the trail was primarily designed as a mountain biking trail, so I kept to the side whenever any bikes were coming... Common sense

Mark Sides
Yellow StarYellow StarGray StarGray StarGray StarGray StarGray StarGray StarGray StarGray StarMarch 26, 2018
Hiking
First to Review

I just added this particular route to Alltrails. According to Gaia and my wifes phone app it is 6.9 miles but Alltrails automatically plugs in 6.6 miles. Bottom line is that this is an easy flat trail and the scenery is absolutely beautiful. As a hiker I can say this is the prettiest trail that I'll never hike again. Bikers take over this trail and as a hiker it's a nightmare. We had to step off the trail every 30 seconds for a biker. Although it's a multi use trail the bikers operate as though they own it. They literally run you off the trail and expect you to jump off the trail as they barrel through. I was just trying to make it out of there without being critically injured. Eventually I just starting hiking off the trail. If your a mountain biker then I'd imagine you'd love this place. For me and other hikers.... it's a shame we can't enjoy this beautiful place.

Konnar McGee
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarAugust 2, 2020
Mountain biking
View Konnar's Recording
Garrertt Guirlando
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarJuly 29, 2020
Hiking
View Garrertt's Recording
Christopher Tidwell
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarJuly 16, 2020
Hiking
View Christopher's Recording
Roger Lobel
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarJuly 15, 2020
Hiking
View Roger's Recording
Erik Hoenes
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarJuly 5, 2020
Hiking
View Erik's Recording
R W
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarJuly 3, 2020
Hiking
View R's Recording
Kacy Jo
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarJune 26, 2020
Mountain biking
View Kacy's Recording
Scott Collins
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarJune 21, 2020
Mountain biking
View Scott's Recording
Mark Levesque
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarJune 2, 2020
Hiking
View Mark's Recording
Kathy Leonard
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMay 22, 2020
Hiking
View Kathy's Recording
Shelby Fagan
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMay 17, 2020
Hiking
View Shelby's Recording
Michael Jaworski
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarMay 8, 2020
Hiking
View Michael's Recording
Alan Bonsett
Yellow StarYellow StarGray StarGray StarGray StarGray StarGray StarGray StarGray StarGray StarMay 3, 2020
Hiking
View Alan's Recording
Sugey Hermes
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarMay 1, 2020
Hiking
View Sugey's Recording
Francisco Javier Ruelas Soto
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMay 1, 2020
Mountain biking
View Francisco Javier's Recording
Enrique Rojas
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMay 1, 2020
Mountain biking
View Enrique's Recording
Showing results 1 - 30 of 63