more stats
1.1 miles
Distance
125 ft
Climb
-122 ft
Descent
00:07:43
Avg time
3 ft
Altitude change
6,336 ft
Altitude min
6,412 ft
Altitude max
6,354 ft
Altitude start
6,357 ft
Altitude end
0.048%
Grade
-17.575%
Grade max
13.926%
Grade min
2,196 ft
Distance climb
2,501 ft
Distance down
1,318 ft
Distance flat
00:07:43
Avg time

Swallowtail (Lower Loop) Details

  • Activities
    • Mountain Bike
    • E-Bike
    • Hike
    • Trail Running
  • Riding Area
    Neslon Ranch Open Space
    Roxborough, Colorado
  • Difficulty Rating
  • Local Popularity
    80 in Mountain Biking [+]
    • 85 in E-Biking
    • 80 in Trail Running
    • 5 in Hiking
  • Global Ranking
    #72681 in Mountain Biking [+]
    • #16193 in E-Biking
    • #116370 in Trail Running
    • #318878 in Hiking
  • State Ranking
    #1,354 in Mountain Biking · Colorado [+]
    • #178 in E-Biking
    • #3,316 in Trail Running
    • #6,899 in Hiking
  • Trail Type
    Singletrack
  • Direction
    Both Directions
  • Dogs Allowed
    Yes
  • eBike Allowed
    Yes up to Class 1

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

AI Generated Description

Swallowtail (Lower Loop) is a 1 mile popular blue difficulty singletrack trail located near Roxborough Colorado. This mountain bike primary trail can be used both directions. On average it takes 7 minutes to complete this trail.

Tags

Local Trail Association

Recent Activity on Trail

Past Week
  • 0 rides
  •  
6 Months
  • 11 rides
  • 16 miles avg distance
All
  • 31 rides
  • Last: Oct 23, 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
Jun 10, 2024 @ 2:05am
Jun 10, 2024
A bit overgrown.
Apr 11, 2024 @ 7:06am
Apr 11, 2024
Mostly dry with a few snow and mud spots. Some sections pockmarked by horse hoofprints. Some erosion ruts in spots. Two stream crossings. ...
Aug 12, 2023 @ 4:17am
Aug 12, 2023
Overgrowth
Nov 9, 2022 @ 2:13am
Nov 9, 2022
Mostly dry. Some mud. Some overgrowth.
more »
Status:
on Feb 27, 2026
Very Dry
Avg: 3.87 (2 votes)
Your vote: 0

view (207)
close
      Directions to swallowtail-lower-loop trailhead (39.407280, -105.049140)

      Photos

      No photos have been added for Swallowtail (Lower Loop) yet, add a photo.

      Videos

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

      Routes with this trail

      ★ 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...
      17 miles • 2,673 ft • 5 • Loop •
      start from North side of Indian creek near rampart range
      3.5 ★★★★★
      2 Ratings
      5 ★
      4 ★ 50%
      3 ★ 50%
      2 ★
      1 ★

      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.

      • By toddTF Pro Trailforks & contributors
      • #79434 - 1,022 views

      Frequently Asked Questions

      ▼ Where is Swallowtail (Lower Loop) located?
      Swallowtail (Lower 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 39.40728, -105.04914.
      ▼ How hard is Swallowtail (Lower Loop)?
      Swallowtail (Lower Loop) is rated as Blue difficulty. The average grade is 0.048%.
      ▼ What is the elevation gain for Swallowtail (Lower Loop)?
      Swallowtail (Lower Loop) has 125 ft of elevation gain. The trail has 122 ft of elevation descent. The elevation ranges from 6,336 ft to 6,412 ft.
      ▼ Is Swallowtail (Lower Loop) a point to point trail?
      Swallowtail (Lower Loop) is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
      ▼ How long is Swallowtail (Lower Loop)?
      Swallowtail (Lower Loop) is 1.1 miles long. The trail type is singletrack.
      ▼ Are dogs allowed on Swallowtail (Lower Loop)?
      Yes, dogs are allowed on Swallowtail (Lower Loop). Please keep dogs on a leash where required and clean up after them.
      ▼ When is the best time of year to ride Swallowtail (Lower Loop)?
      Based on activity log data, the most popular months to ride Swallowtail (Lower Loop) are:
      • July (3 activities)
      • August (2 activities)
      • September (2 activities)
      Check the reports page for current trail conditions.
      ▼ How do I access Swallowtail (Lower Loop)? Where is the closest parking trailhead?
      The closest parking and trailhead locations to Swallowtail (Lower Loop) are: View all parking locations in the area.
      ▼ How long does it take to ride Swallowtail (Lower Loop)?
      Based on recorded activities, it takes an average of 8 minutes to ride Swallowtail (Lower Loop). The trail is 1.1 miles long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
      ▼ How busy is Swallowtail (Lower Loop)?
      Swallowtail (Lower Loop) is a very popular trail. There have been 197 recorded activities on this trail. The trail has received 207 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.