more stats
5.6 miles
Distance
6 ft
Climb
-2,034 ft
Descent
00:28:42
Avg time
-2,031 ft
Altitude change
209 ft
Altitude min
2,240 ft
Altitude max
2,240 ft
Altitude start
210 ft
Altitude end
-6.8%
Grade
-33.2%
Grade max
6.4%
Grade min
305 ft
Distance climb
5 miles
Distance down
525 ft
Distance flat
00:28:42
Avg time

Eldridge Grade Details

  • Activities
    • Mountain Bike
    • Gravel Bike
    • Adaptive Bike
    • Horse
    • Hike
    • Trail Running
  • Riding Area
    Marin Municipal Water District
    Fairfax, California
  • Difficulty Rating
  • Voted Difficulty
    Green (2 votes)
  • Local Popularity
    60 in Mountain Biking [+]
    • 50 in Trail Running
    • 20 in Hiking
    • 5 in Horseback
  • Hiking SAC Scale
    T2 Mountain Hiking
  • Trail Type
    Dirt/Gravel Road
  • Bike Type
    AM, XC, Adaptive MTB, Gravel
  • Direction
    Both Directions
  • Climb Difficulty
    Black Diamond
  • Physical Rating
    Hard
  • Trail Visibility
    Always easy to follow
  • Dogs Allowed
    Yes
  • Land Owner
    Marin Municipal Water District

One of the quintessential climbs up Mt. Tam. This key trail accesses the summit from the north end. Its 11.5 mile climb (both ways) is grueling, but it leads to a fantastic view of the north bay region from the top of the mountain that is the very home of mountain biking.

Disclaimer

Many hikers, please ride with care and consideration.

Adaptive Bike Info
aMTB Blue Rating: Intermediate features and steeper terrain.
Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 2 rides
  • 30 miles average
6 Months
  • 36 rides
  • 23 miles avg distance
All
  • 179 rides
  • Last: Jun 24, 2026
c1c2c3c4
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Status:
on Jun 2, 2024
Very Dry
Avg: 3.79 (5 votes)
Your vote: 0

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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
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  • Downhill Primary
  • Both Directions
  • Uphill Primary
  • Uphill Only
  • One Direction
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Slope Aspect
Direction the slope faces
Flat N NE E SE S SW W NW
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        Directions to eldridge-grade trailhead (37.928560, -122.583670)

        Photos

        10 more »
        60 |
        Dec 4, 2024 @ 9:22pm
        Dec 4, 2024
        81 |
        Dec 4, 2024 @ 1:24pm
        Dec 4, 2024
        160 |
        Jan 13, 2022 @ 11:32pm
        Jan 13, 2022
        361 |
        Feb 23, 2020 @ 1:47pm
        Feb 23, 2020

        Videos

        no videos have been added for Eldridge Grade yet, add a video.

        Routes with this trail

        5.0 26 miles 4,655 ft 12 Loop
        Extended version of Mt Tam Rounder route .. Loop begins and ends at Old Railroad Grade (West Blithedale...
        5.0 21 miles 3,281 ft 8
        A nice ride up to Mt. Tam starting in Mill Valley, up Old Railroad Grade, then down Eldridge Grade into...
        47 miles 8,085 ft 16 Loop
        I believe this is the "easiest" route to hit the 6 highest peaks in Marin (ignoring shoulder ridges). In...

        5 Reviews & Comments


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        • By jip8a & contributors
        • #37052 - 5,827 views

        Frequently Asked Questions About Eldridge Grade

        Where is Eldridge Grade located?
        Eldridge Grade is located in Marin Municipal Water District, Fairfax, California, United States. It is part of the Marin Municipal Water District trail network. The trailhead is located at coordinates 37.92856, -122.58367.
        What is the elevation gain for Eldridge Grade?
        Eldridge Grade has 2 m of elevation gain. The trail has 620 m of elevation descent. The elevation ranges from 64 m to 683 m.
        Is Eldridge Grade a point to point trail?
        Eldridge Grade is not a point to point trail. The direction is Both Directions. The trail type is dirt/gravel road.
        How long is Eldridge Grade?
        Eldridge Grade is 9.0 km long. The trail type is dirt/gravel road.

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