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4,672 ft
Distance
-289 ft
Descent
00:06:57
Avg time
-289 ft
Altitude change
3,536 ft
Altitude min
3,825 ft
Altitude max
3,825 ft
Altitude start
3,537 ft
Altitude end
-6.2%
Grade
-18.9%
Grade max
-0.5%
Grade min
4,672 ft
Distance down
00:06:57
Avg time
Zipper Details
-
Activities
- Mountain Bike
- Hike
- Trail Running
-
Riding AreaHarmony/Washington Ridge
Nevada City, California -
Difficulty Rating
-
Local Popularity95 in Mountain Biking [+]
- 85 in Trail Running
- 55 in Hiking
-
Global Ranking
-
Trail TypeSingletrack
-
Bike TypeXC
-
DirectionBoth DirectionsPopular In Reverse
-
Climb DifficultyBlue
-
Physical RatingModerate
-
Dogs AllowedYes
-
eBike Allowed
-
Land OwnerUSFS
No community description for Zipper trail has been added yet!
AI Generated Description
Zipper is a 4,672 ft popular blue difficulty singletrack trail located near Nevada City California. This mountain bike primary trail can be used both directions and has a moderate overall physical rating with a 0 ft blue climb. On average it takes 6 minutes to complete this trail.
Trail Supporters
USFSLand Manager
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 3 rides
- 16.7 km average
6 Months
- 82 rides
- 24.5 km avg distance
All
- 889 rides
- Last: Jun 16, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Zipper Trail Reports
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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)
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The colour categories are based on what percentage of riders are riding a trail in its intended direction.
The colour categories are based on what percentage of riders are riding a trail in its intended direction.
- > 96%
- > 90%
- > 80%
- > 70%
- > 50%
- < 50%
- bi-directional trail
- no data
Trail Last Ridden
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- < 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
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- Videos
Trail Popularity ?
Trailforks scans ridelogs 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 rides = more kinetic energy = warmer colors.
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Jump Magnitude Heatmap
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BC Backroad Status
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Slope Aspect
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Directions to zipper-32555 trailhead
(39.308540, -120.929800)
Photos
4 more »
Videos
1 more »
7:05 |
370 |
May 26, 2023 , Nevada City
Routes with this trail
8 miles • 999 ft • 2 • Loop • Race •
CA Dirt MTB Series race course. The bottom of Zipper has a minor re-lo not shown here. It is not bedded in...
8 miles • 943 ft • 2 • Loop • Race •
A perennial favorite on the Nevada City Dirt Classic/CA Dirt MTB Series circuit
5 Reviews & Comments
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Nearby Trails
- Zipper Alt. 1,381 ft
- Illegal Equestrian Trail North 1,903 ft
- Dascomb 3,114 ft
- Rock Creek Road 3,369 ft
- Illegal Equestrian Trail South 3,468 ft
Harmony/Washington Ridge
- By sroberts BONC & contributors
- #32555 - 5,488 views
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Frequently Asked Questions About Zipper
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Where is Zipper located?
Zipper is located in Harmony/Washington Ridge, Nevada City, California, United States. It is part of the Harmony/Washington Ridge trail network. The trailhead is located at coordinates 39.30854, -120.9298.
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How hard is Zipper?
Zipper is rated as Blue difficulty. The physical rating is Moderate. The average grade is 6.2%. The climb difficulty is rated Blue.
▼
What is the elevation gain for Zipper?
The trail has 289 ft of elevation descent. The elevation ranges from 3,536 ft to 3,825 ft.
▼
Is Zipper a point to point trail?
Zipper is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
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