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Trail Conditions
- Unknown
- Snow Packed
- Snow Covered
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Dry
- Very Dry
LEGEND
Trail Difficulties
Trail Report Status
- Access Road/Trail
- White
- Green
- Blue
- Black
- Double Black Diamond
Trail Report Status
- Clear / Green
- Minor Issue / Yellow
- Significant Issue / Amber
- Closed or Major Issue / Red
- Land Owner Overlay
- Wilderness (typically no bikes in USA)
- BLM (public)
- USFS (Wildlife sanctuaries darker than usfs)
- State land
- Indigenous
- Military
Trail Conditions
- Unknown
- Snow Packed
- Snow Covered
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Dry
- Very Dry
- Map Markers
Trail Head
Photo
Directory Listing
Riding Area
TTF
Parking
Viewpoint
Information
Warning
Directions
Water Fountain/Source
Sight
Restrooms
Gate
Camping
Trail Sign
Table or Bench
Other
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Region Details
- 8
- 4
- 7
- 5
- 1
Caution on Oct 2, 2018
Stats
- Avg Trail Rating
- Global Ranking
- #3,297
- State Ranking
- #160
- Trails
- 25
- Total Distance
- 39 miles
- Total Descent Distance
- 22 miles
- Total Descent
- 17,643 ft
- Highest Trailhead
- 1,868 ft
- Total Vertical
- 1,763 ft
- Reports
- 28
- Photos
- 87
- Ridden Counter
- 286
Popular Big Rock / Lucas Valley Mountain Bike Trails
Recent Trail Reports
more reports »
Current Trail Warnings
| trail | date | info | |
|---|---|---|---|
| Idylberry Trail | Sep 15, 2017 @ 7:21pm Sep 15, 2017 |
Photos of Big Rock / Lucas Valley Mountain Bike
trail: 680
5 | 680, Petaluma
Jul 9, 2018 @ 1:50am
Jul 9, 2018Videos of Big Rock / Lucas Valley Mountain Bike
trail: Big Rock Ridge Fire Road
0:09 |
50 |
Sep 27, 2017
trail: Rotor Burn
2:17 |
133 |
Jul 14, 2016
trail: 680
8:41 |
581 |
Jan 21, 2013
Recent Comments
| username | type | title | comment | date | |
|---|---|---|---|---|---|
 | trail | Can't pedal up it because it's to steep and... | Aug 2, 2018 @ 9:24pm Aug 2, 2018 | ||
 | trail | Brutally and relentlessly steep fire road. ... | Apr 1, 2018 @ 9:12pm Apr 1, 2018 | ||
| report | Also, this is a green trail! | Mar 4, 2018 @ 6:33pm Mar 4, 2018 | ||
 | trail | Super loose, steep,narrow downhill that really... | Dec 5, 2017 @ 6:21pm Dec 5, 2017 | ||
 | trail | Is this trail open for bikes. I came to visit... | Sep 15, 2017 @ 7:09pm Sep 15, 2017 |
Recent Activity
| username | action | type | title | date | |
|---|---|---|---|---|---|
| jonathanbinder | add | ridelog | Oct 6, 2018 ride log | Oct 13, 2018 @ 4:11am 3 days |
 | CFStewie | add | ridelog | Oct 9, 2018 ride log | Oct 9, 2018 @ 12:40pm Oct 9, 2018 |
| wguild | add | ridelog | Oct 7, 2018 ride log | Oct 7, 2018 @ 10:44am Oct 7, 2018 |
 | nbhurst | add | ridelog | Oct 6, 2018 ride log | Oct 6, 2018 @ 4:58pm Oct 6, 2018 |
| CFStewie | add | ridelog | Sep 28, 2018 ride log | Sep 28, 2018 @ 1:20pm Sep 28, 2018 |
Nearby Riding Areas
| name | distance | ||||
|---|---|---|---|---|---|
| Tamarancho / West Marin / North Tam | 12 | 38 | 28 | 1 | 3.1 km |
| China Camp | 3 | 11 | 7 | 5.9 km | |
| Stafford Lake Bike Park | 1 | 1 | 1 | 6.3 km | |
| Marin County Open Space: Rush Creek | 2 | 6.4 km | |||
| Mt Tam / Marin Headlands | 6 | 16 | 5 | 9.5 km |
- By brenthillier NSMBA Plus & contributors
- Admins: A4B, MCBC
- #3979 - 3,464 views
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