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2,103 ft
Distance
-156 ft
Descent
00:01:39
Avg time
-156 ft
Altitude change
8,217 ft
Altitude min
8,373 ft
Altitude max
8,373 ft
Altitude start
8,219 ft
Altitude end
-7.4%
Grade
-28.1%
Grade max
0.3%
Grade min
1,857 ft
Distance down
52 ft
Distance flat
00:01:39
Avg time
Undertow (Section 1) Details
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Activities
- Mountain Bike
-
Riding AreaDeer Valley Resort
Park City, Utah -
Difficulty Rating
-
Voted DifficultyBlue (10 votes)
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Local Popularity80 in Mountain Biking
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Global Ranking#24965 in Mountain Biking
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State Ranking#527 in Mountain Biking · Utah
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Trail TypeMachine Groomed
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Bike TypeDH, AM
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DirectionDownhill OnlyPopular Direction Shown
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Physical RatingModerate
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Trail VisibilityAlways easy to follow
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eBike Allowed
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TTFs on TrailBerm, Roller Coaster
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Land OwnerDeer Valley Resort
Fast downhill flow trail. Super fun, well built and well designed trail.
Bike Park
Local Trail Association
-
-
Please consider joining or donating to the local trail association to support
trail development & maintenance.
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 1 rides
- 12 miles average
6 Months
- 380 rides
- 21 miles avg distance
All
- 1,190 rides
- Last: Oct 30, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Undertow (Section 1) Trail Reports
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3D
Trail Conditions
- Unknown
- Snow Groomed
- Snow Packed
- Snow Covered
- Snow Cover Partial
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Ideal
- Dry
- Very Dry
Trail Flow (Ridden Direction)
Trailforks scans users activity logs to determine the most popular direction each trail is ridden. A good flowing trail network will have most trails flowing in a single direction according to their intension.
The colour categories are based on what percentage of users are riding a trail in its intended direction.
The colour categories are based on what percentage of users are riding a trail in its intended direction.
- > 96%
- > 90%
- > 80%
- > 70%
- > 50%
- < 50%
- bi-directional trail
- no data
Trail Last Used
Trailforks scans activity logs to determine the last time a trail was ridden.
- < 2 days
- < 1 week
- < 2 weeks
- < 1 month
- < 6 months
- > 6 months
Trail Ridden Direction
The intended direction a trail should be ridden.
- Downhill Only
- Downhill Primary
- Both Directions
- Uphill Primary
- Uphill Only
- One Direction
Contribute Details
Colors indicate trail is missing specified detail.
- Description
- Photos
- Description & Photos
- Videos
Trail Popularity ?
Trailforks scans activity logs to determine which trails are ridden the most in the last 9 months.
Trails are compared with nearby trails in the same city region with a possible 25 colour shades.
Think of this as a heatmap, more activities = more kinetic energy = warmer colors.
- most popular
- popular
- less popular
- not popular
ATV/ORV/OHV Filter
Max Vehicle Width
inches
US Cell Coverage
Legend
Radar Time
Activity Recordings
Trailforks uses anonymized public activity data.
?
Activity Recordings
Trailforks uses anonymized public activity data.
?
Winter Trails
Warning
A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
Missing Trails
Most Popular
Least Popular
Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
Jump Magnitude Heatmap
Heatmap of where users jump on trails. Zoom in to see individual jumps, click circles to view jump details.
BC Backroad Status
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Service Road Atlas is a free to use, community-driven service for viewing and creating reports on the numerous back-country service roads around B.C. and Alberta.
Slope Aspect
Direction the slope faces
Trails Deemphasized
Trails are shown in grey.
Only show trails with no bike usage.
Suggested Layers
Based on selected activity type
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Directions to undertow-section-1 trailhead
(40.625740, -111.483800)
Photos
6 more »
Videos
6 more »
mtb
35:12 |
423 |
Sep 12, 2022 , Park City
mtb
7:52 |
673 |
Aug 8, 2021 , Park City
mtb
7:36 |
413 |
Nov 22, 2019 , Park City
mtb
8:15 |
529 |
Oct 24, 2019 , Park City
Routes with this trail
5 miles • 1,106 ft • 4 • Loop •
Pedal route for Undertow loop since Deer Crest is closed (as of 7/3/22) due to trail construction in the area.
Trail Products
12 Reviews & Comments
Bociancz
Agree with the other comments, this is a blue by DV standards, not black. The berms may be intimidating for beginners, but overall this is significantly easier trail than Regulator, with no jumps and nothing technical.
Aidan22
Fun trail. As others have said, easier and more flowy than regulator. Personally I'd rather this a blue.
Scottyd17485
Classic bike park flow trail. Definitely not a black. Lots of hip jumps and big berms.
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Nearby Trails
- Secrets Of My Success 0 ft
- Ncs 0 ft
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- Ripple (section 1) 764 ft
- Regulator (section 2) 771 ft
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Trailforks & contributors - #189961 - 7,609 views
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