more stats
4,393 ft
Distance
-381 ft
Descent
00:08:33
Avg time
-381 ft
Altitude change
7,344 ft
Altitude min
7,724 ft
Altitude max
7,724 ft
Altitude start
7,343 ft
Altitude end
-8.7%
Grade
-30.9%
Grade max
-2.2%
Grade min
4,393 ft
Distance down
00:08:33
Avg time

Bill Spring Details

  • Activities
    • Mountain Bike
    • Horse
    • Hike
    • Trail Running
    • Snowshoe
    • Backcountry Ski
  • Riding Area
    Sandia Mountains - Upper East Side
    Albuquerque, New Mexico
  • Ref Number
    #196
  • Difficulty Rating
  • Local Popularity
    90 in Mountain Biking [+]
    • 95 in Trail Running
    • 95 in Hiking
    • 5 in Horseback
    • 5 in Snowshoeing
    • 5 in Backcountry Skiing
  • Global Ranking
    #48439 in Mountain Biking [+]
    • #31779 in Trail Running
    • #31268 in Hiking
    • #2992 in Horseback
  • Hiking SAC Scale
    T1 Hiking
  • Trail Type
    Mixed
  • Bike Type
    AM, XC
  • Direction
    Both Directions
    Popular Direction Shown
  • Climb Difficulty
    Black Diamond
  • Physical Rating
    Moderate
  • Trail Visibility
    Always easy to follow
  • Season
    April - November
  • Dogs Allowed
    Yes
  • eBike Allowed
  • TTFs on Trail
    Rock Garden
  • Ride in Rain
    Yes
  • Land Owner
    Cibola National Forest

Bill Spring is a moderate level difficulty trail connecting the Sulpher Canyon and Doc Long Picnic areas up to the intersection with the Faulty and Oso Corredor Trails. The lower section is characterized by fast, straight sections with abrupt trail blockages intended to slow downhill traffic. Be mindful of these and hikers (which tend to be plentiful) on the way down. The upper section has some slightly more technical moments, but nothing above an intermediate level. Bill Spring ends at the junctions of Faulty and Challenge trails.

Access Info

Park at the pull-off below Sulphur Canyon or park at the picnic areas ($3 day use fee)

Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 6 rides
  • 11 miles average
6 Months
  • 103 rides
  • 13 miles avg distance
All
  • 460 rides
  • Last: Aug 23, 2026
c1c2c3c4
January
February
March
April
May
June
July
August
September
October
November
December
Status:
on May 4, 2026
Dry
Avg: 4.19 (4 votes)
Your vote: 0

view (1,907)
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 activity logs 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 users are riding a trail in its intended direction.
  • > 96%
  • > 90%
  • > 80%
  • > 70%
  • > 50%
  • < 50%
  • bi-directional trail
  • no data
Trail Last Ridden
Trailforks scans activity logs 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 activity logs 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 activities = 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. ?
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 users 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 bill-spring trailhead (35.182990, -106.388700)

        Photos

        2 more »
        mtb
        71 |
        Jun 30, 2023 @ 8:35pm
        Jun 30, 2023
        mtb
        207 |
        Oct 30, 2020 @ 9:35am
        Oct 30, 2020

        Videos

        1 more »
        Traumatizing Hikers in the Sandias
        mtb
        7:26 | 390 | Nov 17, 2019 , Albuquerque

        Routes with this trail

        4.0 27 miles 4,829 ft 33 Loop
        This is a pretty techy and difficult ride that gets all of the best stuff in the Sandia East Side trail...
        4.0 30 miles 5,614 ft 33 Loop
        Very difficult route that gets the entirety of the Faulty trail (minus to at the very beginning.) You need...
        9 miles 448 ft 3 Shuttled
        Pretty Sick Route, techy yewwwww
        4.5
        4 Ratings
        5 75%
        4
        3 25%
        2
        1

        2 Reviews & Comments


        We hope you've been enjoying Trailforks!

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

        • By aldousfilcherTF Pro & contributors
        • #208809 - 1,653 views

        Frequently Asked Questions About Bill Spring

        Where is Bill Spring located?
        Bill Spring is located in Sandia Mountains - Upper East Side, Albuquerque, New Mexico, United States. It is part of the Sandia Mountains - Upper East Side trail network. The trailhead is located at coordinates 35.18299, -106.3887.
        How hard is Bill Spring?
        Bill Spring is rated as Blue difficulty. The physical rating is Moderate. The average grade is 8.7%. The climb difficulty is rated Black Diamond.
        What is the elevation gain for Bill Spring?
        The trail has 381 ft of elevation descent. The elevation ranges from 7,344 ft to 7,724 ft.
        Is Bill Spring a point to point trail?
        Bill Spring is not a point to point trail. The direction is Both Directions. The trail type is mixed.
        How long is Bill Spring?
        Bill Spring is 4,393 ft long. The trail type is mixed.
        Are dogs allowed on Bill Spring?
        Yes, dogs are allowed on Bill Spring. Please keep dogs on a leash where required and clean up after them.
        When is the best time of year to ride Bill Spring?
        Based on activity log data, the most popular months to ride Bill Spring are:
        • July (16 activities)
        • August (14 activities)
        • May (12 activities)
        Check the reports page for current trail conditions.
        How do I access Bill Spring? Where is the closest parking trailhead?
        The closest parking and trailhead locations to Bill Spring are: View all parking locations in the area.
        How long does it take to ride Bill Spring?
        Based on recorded activities, it takes an average of 8 minutes to ride Bill Spring. The trail is 4,393 ft long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
        How busy is Bill Spring?
        Bill Spring is a very popular trail. There have been 1,876 recorded activities on this trail. The trail has received 1,880 check-ins. View recent activity on this trail.

        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.