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Las Trampas to Mt. Diablo Trail

Difficult
 2.8 (6)

Seldom traveled multi-use trail through neighborhoods between Alamo and Macedo Ranch at Mt. Diablo.


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Map Key

4.6

Miles

7.4

KM

Singletrack

935' 285 m

High

310' 94 m

Low

954' 291 m

Up

606' 185 m

Down

6%

Avg Grade (4°)

27%

Max Grade (15°)

Dogs Unknown

E-Bikes Unknown

Can be loose and dusty after it has been graded mid-summer. And, it often has lots of goat-head thorns in August and September - go tubeless!

Description

This trail is an interesting way to access Mt. Diablo from Alamo. The trail rises quickly above the freeway and follows a right-of-way between horse properties and estates until it hits Stone Valley Rd. The trail follows the road for a short distance then picks up again on the other side of Stone Valley Rd with 2 quick gut buster climbs (steep but short).

A steady, but mostly shaded, climb takes you to the top of the Roundhill North neighborhood. From there, there is a flowy singletrack into one of the most beautiful valleys on Mt. Diablo (just West of Macedo Ranch). Follow the poorly marked trail through the grazed valley to reach the Macedo Ranch staging area and parking.

Cross the parking lot to reach the Briones to Mt. Diablo trail and to access Wall Point Road.

Contacts

Shared By:

Mike Anciaux

Trail Ratings

  2.8 from 6 votes

#1

in Tri-Valley

#19876

Overall
  2.8 from 6 votes
5 Star
17%
4 Star
17%
3 Star
17%
2 Star
33%
1 Star
17%
Trail Rankings

#1

in Tri-Valley

#1,765

in California

#19,876

Overall
68 Views Last Month
1,607 Since Oct 8, 2014
Difficult

0%
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Photos

This is a gorgeous, seldom visited canyon.  It is hard to decide whether to pay attention to the perfect singletrack descent or the view.
Oct 8, 2014 near Alamo, CA
You get a bird's eye view of some great neighborhoods
Oct 8, 2014 near Alamo, CA
Look back at the freeway to see how far you've come up in the first climb
Oct 8, 2014 near Alamo, CA

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Check-Ins

May 23, 2018
Will Last
Very steep and not particularly well groomed trail. A very tough ride actually.
Feb 25, 2018
Paolo Martinez
Jan 21, 2018
Spencer Dean
Aug 13, 2016
Rob Norris
Rode from the top down to Stone Valley. Extra downhill for the Dan Cook loop, but top of trail is cowpie city 2mi