more stats
3,530 ft
Distance
133 ft
Climb
-16 ft
Descent
00:06:44
Avg time
117 ft
Altitude change
765 ft
Altitude min
899 ft
Altitude max
765 ft
Altitude start
883 ft
Altitude end
3.3%
Grade
-6%
Grade max
17.1%
Grade min
2,369 ft
Distance climb
587 ft
Distance down
538 ft
Distance flat
00:06:44
Avg time

Lower Alta Details

  • Activities
    • Mountain Bike
    • E-Bike
    • Horse
    • Hike
    • Trail Running
  • Riding Area
    Marin Headlands
    Sausalito, California
  • Difficulty Rating
  • Local Popularity
    75 in Mountain Biking [+]
    • 85 in E-Biking
    • 90 in Trail Running
    • 70 in Hiking
    • 5 in Horseback
  • Global Ranking
    #196076 in Mountain Biking [+]
    • #53694 in E-Biking
    • #35250 in Trail Running
    • #73643 in Hiking
    • #16288 in Horseback
  • Hiking SAC Scale
    T2 Mountain Hiking
  • Trail Type
    Doubletrack
  • Bike Type
    DH, AM, XC
  • Direction
    Both Directions
  • Climb Difficulty
    Blue
  • Physical Rating
    Moderate
  • Trail Visibility
    Always easy to follow
  • Family Friendly
    Yes
  • eBike Allowed
  • Land Owner
    National Park Service

No community description for Lower Alta trail has been added yet!

AI Generated Description

Lower Alta is a 3,530 ft popular blue difficulty family friendly doubletrack trail located near Sausalito California. This multi-use trail can be used both directions and has a moderate overall physical rating with a 133 ft blue climb. Trail visibility is always easy to follow. On average it takes 6 minutes to complete this trail.

Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 3 rides
  • 16 miles average
6 Months
  • 44 rides
  • 19 miles avg distance
All
  • 129 rides
  • Last: Jul 10, 2026
c1c2c3c4
January
February
March
April
May
June
July
August
September
October
November
December
update trails status or condition

Lower Alta Trail Reports

statusdatedescription
Dec 20, 2025 @ 11:23am (America/Los_Angeles)
Dec 20, 2025
Nov 21, 2025 @ 1:10pm (America/Los_Angeles)
Nov 21, 2025
Jul 22, 2025 @ 5:48pm
Jul 22, 2025
Nov 24, 2024 @ 2:12pm
Nov 24, 2024
Jun 20, 2024 @ 7:13am
Jun 20, 2024
Scenic fire road ride that the climbing is front loaded and the way back is almost all downhill. The first 1/2 mile of the ride you may see...
more »
Status:
on Dec 20, 2025
Prevalent Mud
no votes yet
Your vote: 0

view (1,704)
close
3D
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 ridelogs 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 riders are riding a trail in its intended direction.
  • > 96%
  • > 90%
  • > 80%
  • > 70%
  • > 50%
  • < 50%
  • bi-directional trail
  • no data
Trail Last Ridden
Trailforks scans ridelogs 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 ridelogs 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 rides = more kinetic energy = warmer colors.
  • most popular
  • popular
  • less popular
  • not popular
ATV/ORV/OHV Filter
Max Vehicle Width
inches
US Cell Coverage
Legend
cell carrier legend

Radar Time
Activity Recordings
Trailforks uses anonymized public activity data. ?
Activity Recordings
Trailforks uses anonymized public activity data. ?
Personal Heatmap
Activity Types
all / none
Options
2
Date range month
Winter Trails
Warning A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
Missing Trails
Most Popular
Least Popular
Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
Jump Magnitude Heatmap
Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
BC Backroad Status

Service Road Atlas is a free to use, community-driven service for viewing and creating reports on the numerous back-country service roads around B.C. and Alberta.

map legend
Slope Aspect
Direction the slope faces
Flat N NE E SE S SW W NW
Trails Deemphasized
Trails are shown in grey.
disable
Only show trails with no bike usage.
Enable
Suggested Layers
Based on selected activity type

    Save the current map location and zoom level as your default home location whenever this page is loaded.

    Save
        Directions to lower-alta trailhead (37.854940, -122.504620)

        Photos

        No photos have been added for Lower Alta yet, add a photo.

        Videos

        no videos have been added for Lower Alta yet, add a video.

        Trail Products

        Reviews / Comments

        No reviews yet, be the first to write a review or ask a question.
        Use trail reports to comment on trail conditions.


        We hope you've been enjoying Trailforks!

        Create a FREE account to view trail comments and much more.

        • By spokesmanmtbTF Pro Durango SJT & contributors
        • #550743 - 429 views

        Frequently Asked Questions About Lower Alta

        Where is Lower Alta located?
        Lower Alta is located in Marin Headlands, Sausalito, California, United States. It is part of the Marin Headlands trail network. The trailhead is located at coordinates 37.85494, -122.50462.
        How hard is Lower Alta?
        Lower Alta is rated as Blue difficulty. The physical rating is Moderate. The average grade is 3.3%. The climb difficulty is rated Blue.
        What is the elevation gain for Lower Alta?
        Lower Alta has 133 ft of elevation gain. The trail has 16 ft of elevation descent. The elevation ranges from 765 ft to 899 ft.
        Is Lower Alta a point to point trail?
        Lower Alta is not a point to point trail. The direction is Both Directions. The trail type is doubletrack.

        Hit the Trail

        Open in App

        Get this trail on your phone instantly.
        open trail in app

        Download Trail

        Save to wishlist, Garmin & download.
        save the trail

        Find Related Routes

        Find routes and users activities that include this trail.
        find routes for this trail

        You must enter a description before submitting.