Lagoon Valley

3.55 out of 5
View Topo Map


Fire Road
↑ 300 ft
↓ 100 ft
elevation (ft)

Trail Description
About this trail
Flat wide trail around lake for warm up then head east up fireroad. Solid climb to antenna towers. Now the fun, lots of windy switchback single track all the way down to lake level. Alternate path, go up double track on north end of lake, to the north of look out parking lot, difficult climb to another antenna tower. At top take trail off back side (away from lake) and singletrack back to parking lot off of Alamo. If you run into a bridge followed by locked gate, don't worry retrace path southward and take first interesection to the right. Follow trail back to parking lot. Can't get lost on this ride. Good 1-2 hour after work fun ride. Lots of thorning weeds in summer but good year round.
added by karendenyseGranny Gear
Trail Features
Trail features
  • Lift Service
  • Drinking Water
  •   Night Riding
  • Pump Track
  • Restrooms
  • Winter Fat Biking
Directions to Trailhead
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Trail Q&A
Rider Questions


Q: Is there a way to park at the top of you just want to ride the downhill section? -Guest

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Local Info & Nearby Trails
Trail Check-ins
Trail Check-ins
what's this?
Recent Trail Check-ins     (27 total check-ins)
  Young@heart   on Nov 9, 2019
  joe368   on Sep 27, 2019
  krheronemus   on Sep 15, 2019
  krheronemus   on Jun 9, 2019
  krheronemus   on Mar 7, 2019
Photo & Video Gallery (8)
Trail Photos & Videos (8)
Reviews (11)

Granny Gear

March 17, 2017
Hans Peter Granny Gear  
Review: This trail took some serious damage after all the rain NorCal experienced in January and February. It's still rideable, but many sections sport a deep rut from erosion. Moreover, cattle native to the park pock-marked the trail when it was muddy. Some sections Really test the suspension.

The fire road leading up to the top of the trail is a really fun climb, and there are several other sections of single-track that get up the hills.

"Beginner" is NOT a good rating for this park in it's current condition. It would be a bad idea to take an inexperienced mountain biker on this trail until the singletrack has had a chance to smooth out a little.

In a way, the trail is more fun when it's beat up, it adds plenty of extra challenge and you feel like you're really pushing the bike to it's limits.

Granny Gear

December 21, 2015
EC Granny Gear  
Review: Great single tracks with decent down hill for newer and intermediate riders. Trails get a lot of hikers and some horses.

December 19, 2015
Review: Good trails with some decent fun down hill sections. The park can be busy on weekends and evenings with hikers, bikers and an occasional horse. Most of the people are friendly

Granny Gear

July 1, 2015
FFDave Granny Gear  
Review: I'm new to MTBing spending the last 4 years running these trails. I feel this is a great place to learn how to ride! Lots of elevation and I love the down hills.

Granny Gear

July 1, 2015
FFDave Granny Gear  
Review: I'm new to MTBing spending the last 4 years running these trails. I feel this is a great place to learn how to ride! Lots of elevation and I love the down hills.

Granny Gear

May 30, 2015
opfella Granny Gear  
Review: Gravel road is steep. Single track can be tight and tough. Good work out.


August 24, 2013
Twiddles Gramcounter  
Review: Ride is 4.6 miles from parking lot to
Third Tower and back. No way to make this a 10 mile ride unless you loop the lake twice. Uphill is tough either on the fire road or the track next to it. 875 feet over two miles with a max grade of 12%. Downhill is narrow lots of switchbacks some exposure not really possible to really get good speed. I would say downhill is intermediate. Will not be back, your mileage may vary.

Granny Gear

June 17, 2013
jwleonard Granny Gear  
Review: Good ride if you are around a 30-45 min drive or less. There are several different loops to take. The one I find the best is to climb past each tower (microwave) until you reach the third one. Then take the single track downhill on the backside of that tower all the way down. It equates to about 20 minutes of downhill. There is also a fire road to the top. The sticker bushes are much better this year and have been pushed back from the edges of the trails.

Granny Gear

November 12, 2012
Review: its ok Ride

Granny Gear

July 18, 2010
Review: Took this trail twice in July. Went up road to the tower, which was a nice climb. Then, at the top, the trail goes into a single track all the way back. It was about 45 minutes up and 45 minutes down and back to the parking lot (free lot!). Problems: Too many stickers - first ride: one flat tire. second ride: both flat. Don't wear shorts - legs went through huge sticker bushes and at the end of the ride - my legs were bloody. A couple spots required walking. Overall, it is about a 2.5 out of 5 but I rounded up.

Lagoon Valley MTB Trail 3.55 out of 5 based on 11 ratings. 11 user reviews.
Trail Conditions
Trail Conditions          < / > embed