more stats
1.9 miles
Distance
397 ft
Climb
-310 ft
Descent
00:18:28
Avg time
86 ft
Altitude change
6,308 ft
Altitude min
6,511 ft
Altitude max
6,413 ft
Altitude start
6,500 ft
Altitude end
0.85%
Grade
-17.386%
Grade max
20.288%
Grade min
4,628 ft
Distance climb
4,036 ft
Distance down
1,470 ft
Distance flat
00:18:28
Avg time

Swallowtail (Upper Loop) Details

  • Activities
    • Mountain Bike
    • E-Bike
    • Hike
    • Trail Running
  • Riding Area
    Neslon Ranch Open Space
    Roxborough, Colorado
  • Difficulty Rating
    Blue Rate
  • Local Popularity
    85 in Mountain Biking [+]
    • 65 in E-Biking
    • 75 in Trail Running
    • 5 in Hiking
  • Global Ranking
    #189448 in Mountain Biking [+]
    • #42097 in E-Biking
    • #120373 in Trail Running
    • #324768 in Hiking
  • State Ranking
    #3,448 in Mountain Biking · Colorado [+]
    • #466 in E-Biking
    • #3,437 in Trail Running
    • #6,983 in Hiking
  • Trail Type
    Singletrack
  • Direction
    Both Directions
  • Dogs Allowed
    Yes
  • eBike Allowed
    Yes up to Class 1

No community description for Swallowtail (Upper Loop) trail has been added yet!

AI Generated Description

Swallowtail (Upper Loop) is a 2 mile popular blue difficulty singletrack trail located near Roxborough Colorado. This mountain bike primary trail can be used both directions. On average it takes 18 minutes to complete this trail.

Tags

Local Trail Association

Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 0 rides
  •  
6 Months
  • 9 rides
  • 12 miles avg distance
All
  • 27 rides
  • Last: Sep 21, 2026
c1c2c3c4
January
February
March
April
May
June
July
August
September
October
November
December
update trails status or condition

Swallowtail... Trail Reports

statusdatedescription
Feb 27, 2026 @ 11:17am (America/Denver)
Feb 27, 2026
 Sandy in spots
Jun 10, 2024 @ 2:05am
Jun 10, 2024
 A couple of stream crossings and some sand and overgrowth but generally good.
Oct 4, 2023 @ 10:11am
Oct 4, 2023
 Recently brushed back.
Nov 12, 2022 @ 2:36am
Nov 12, 2022
Aug 4, 2021 @ 9:19am
Aug 4, 2021
 Trail is very overgrown and hard to find in places.
more »
Status:
on Feb 27, 2026
Very Dry
no votes yet
Your vote: 0

view (492)
close
      Directions to swallowtail-upper-loop trailhead (39.409150, -105.054367)
      View on Discover Map

      Photos

      6 more »
      mtb
      94 |
      Jul 21, 2020 @ 8:09am
      Jul 21, 2020
      mtb
      107 |
      Jul 21, 2020 @ 8:08am
      Jul 21, 2020
      mtb
      100 |
      Jul 21, 2020 @ 8:08am
      Jul 21, 2020
      mtb
      118 |
      Jul 21, 2020 @ 8:08am
      Jul 21, 2020

      Videos

      no videos have been added for Swallowtail (Upper Loop) yet, add a video.

      Routes with this trail

      60
      Cowboys and Indians
      ★ 5.0 • 38 miles • 7,683 ft • 12 •
      An amazing loop that has it all. Great climbs, epic views, rippin descents, a variety of wildlife, lots of...
      72
      IC/800, RT, The Ridge
      ★ 2.5 • 20 miles • 3,626 ft • 10 •
      CCW, skirts the upper part of Roxy State Park.

      Reviews / Comments

      No reviews yet, be the first to write a review or ask a question.
      Use trail reports to comment on trail conditions.


      We hope you've been enjoying Trailforks!

      Create a FREE account to view all trail reviews and much more.

      Create a Free Account

      Nearby Trails

      Neslon Ranch Open Space

      • By toddTF Pro Trailforks & contributors
      • #79433 - 1,395 views

      Frequently Asked Questions

      ▼ Where is Swallowtail (Upper Loop) located?
      Swallowtail (Upper Loop) is located in Neslon Ranch Open Space, Roxborough, Colorado, United States. It is part of the Neslon Ranch Open Space trail network. The trailhead is located at coordinates 39.40915, -105.05437.
      ▼ How hard is Swallowtail (Upper Loop)?
      Swallowtail (Upper Loop) is rated as Blue difficulty. The average grade is 0.85%.
      ▼ What is the elevation gain for Swallowtail (Upper Loop)?
      Swallowtail (Upper Loop) has 397 ft of elevation gain. The trail has 310 ft of elevation descent. The elevation ranges from 6,308 ft to 6,511 ft.
      ▼ Is Swallowtail (Upper Loop) a point to point trail?
      Swallowtail (Upper Loop) is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
      ▼ How long is Swallowtail (Upper Loop)?
      Swallowtail (Upper Loop) is 1.9 miles long. The trail type is singletrack.
      ▼ Are dogs allowed on Swallowtail (Upper Loop)?
      Yes, dogs are allowed on Swallowtail (Upper Loop). Please keep dogs on a leash where required and clean up after them.
      ▼ When is the best time of year to ride Swallowtail (Upper Loop)?
      Based on activity log data, the most popular months to ride Swallowtail (Upper Loop) are:
      • July (2 activities)
      • August (2 activities)
      • November (2 activities)
      Check the reports page for current trail conditions.
      ▼ How do I access Swallowtail (Upper Loop)? Where is the closest parking trailhead?
      The closest parking and trailhead locations to Swallowtail (Upper Loop) are: View all parking locations in the area.
      ▼ How long does it take to ride Swallowtail (Upper Loop)?
      Based on recorded activities, it takes an average of 18 minutes to ride Swallowtail (Upper Loop). The trail is 1.9 miles long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
      ▼ How busy is Swallowtail (Upper Loop)?
      Swallowtail (Upper Loop) is a very popular trail. There have been 364 recorded activities on this trail. The trail has received 492 check-ins. View recent activity on this trail.

      Hit the Trail

      Open in App

      Get this trail on your phone instantly.
      open trail in app

      Download Trail

      Save to wishlist, Garmin & download.
      save the trail

      Find Related Routes

      Find routes and users activities that include this trail.
      find routes for this trail

      You must enter a description before submitting.