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1.9 miles
Distance
397 ft
Climb
-310 ft
Descent
00:16:50
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
00:16:50
Avg time
Swallowtail (Upper Loop) Details
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Activities
- Mountain Bike
- E-Bike
- Hike
- Trail Running
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Riding AreaNeslon Ranch Open Space
Roxborough, Colorado -
Difficulty Rating
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Local Popularity75 in Mountain Biking [+]
- 80 in E-Biking
- 5 in Trail Running
- 5 in Hiking
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Global Ranking
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Trail TypeSingletrack
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DirectionBoth Directions
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Dogs AllowedYes
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eBike AllowedYes 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 16 minutes to complete this trail.
Local Trail Association
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Please consider joining or donating to the local trail association to supportDonate to earn trail karma!
trail development & maintenance.
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 0 rides
6 Months
- 1 rides
- 6 miles avg distance
All
- 18 rides
- Last: May 30, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Swallowtail... Trail Reports
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Trail Conditions
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- Snow Groomed
- Snow Packed
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- Prevalent Mud
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Trail Flow (Ridden Direction)
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The colour categories are based on what percentage of riders are riding a trail in its intended direction.
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- Both Directions
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- One Direction
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Directions to swallowtail-upper-loop trailhead
(39.409150, -105.054367)
Photos
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Videos
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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...
★ 2.5 • 20 miles • 3,626 ft • 10 •
CCW, skirts the upper part of Roxy State Park.
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Nearby Trails
- Sharptail Ridge 2,543 ft
- Swallowtail (lower Loop) 2,612 ft
- South Rim 2 miles
- Indian Creek 2 miles
- Dc5 (no Motorized) 3 miles
Neslon Ranch Open Space
- By todd
Trailforks & contributors - #79433 - 1,179 views
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Frequently Asked Questions About Swallowtail (Upper Loop)
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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.
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How hard is Swallowtail (Upper Loop)?
Swallowtail (Upper Loop) is rated as Blue difficulty. The average grade is 0.85%.
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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.
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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.
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