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2.5 miles
Distance
266 ft
Climb
-781 ft
Descent
00:21:27
Avg time
-513 ft
Altitude change
678 ft
Altitude min
1,439 ft
Altitude max
1,308 ft
Altitude start
794 ft
Altitude end
-3.8%
Grade
-38%
Grade max
31.9%
Grade min
3,832 ft
Distance climb
2 miles
Distance down
912 ft
Distance flat
00:21:27
Avg time
680 Details
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Activities
- Mountain Bike
- Horse
- Hike
- Trail Running
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Riding AreaLoma Alta Preserve
Fairfax, California -
Difficulty Rating
-
Voted DifficultyBlue (1 vote)
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Local Popularity30 in Mountain Biking [+]
- 50 in Trail Running
- 5 in Hiking
- 5 in Horseback
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Global Ranking
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State Ranking#5,243 in Mountain Biking · California [+]
- #7,223 in Trail Running
- #11,577 in Hiking
- #276 in Horseback
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Trail TypeSingletrack
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Bike TypeXC
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DirectionDownhill Primary
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Climb DifficultyBlue
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Physical RatingModerate
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Trail VisibilityAlways easy to follow
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Dogs AllowedYes
-
eBike Allowed
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Land OwnerMarin County Parks
No community description for 680 trail has been added yet!
AI Generated Description
680 is a 3 mile less popular green difficulty singletrack trail located near Fairfax California. This multi-use trail can be used downhill primary and has a moderate overall physical rating with a 266 ft blue climb. Trail visibility is always easy to follow. On average it takes 21 minutes to complete this trail.
Local Trail Association
-
-
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
- 8 rides
- 25 miles avg distance
All
- 86 rides
- Last: Sep 17, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
680 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)
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.
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- popular
- less popular
- not popular
ATV/ORV/OHV Filter
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Activity Recordings
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Activity Recordings
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Winter Trails
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Missing Trails
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Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
Jump Magnitude Heatmap
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BC Backroad Status
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Slope Aspect
Direction the slope faces
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Directions to 680 trailhead
(38.019540, -122.615360)
Photos
33 more »
Videos
2 more »
mtb
20:33 |
1112 |
Jan 1, 2019 , Fairfax
mtb
8:41 |
835 |
Jan 21, 2013 , Fairfax
Routes with this trail
★ 5.0 • 33 miles • 7,303 ft • 13 • Loop •
Great combination of single track trails ( , 680, , , , ) and fire roads (Chicken Shack, Ridge, Loma Alta,...
★ 5.0 • 22 miles • 4,619 ft • 5 • Loop •
Great tour of Big Rock Ridge and Loma Alta, featuring amazing views, lots of climbing, and 3 classic Marin...
25 miles • 5,170 ft • 10 • Loop •
Single tracks (5 mi) - 680, Fire roads (20+ mi) - all other trails Rattlesnakes - look out for and avoid...
Tigrtheshredder
Starts off as a single track then about a third in turns back into a fire road with a very steep section, near the top in the last third it goes back to a moderately steep single track.
FRguild
Decent scenery, but 680 is more like a mini fire road with off camber turns. Can be used as a connector from goat trail (big Rock ridge), back over to solstice.
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