more stats
4,091 ft
Distance
2 ft
Climb
-17 ft
Descent
00:11:49
Avg time
-15 ft
Altitude change
287 ft
Altitude min
304 ft
Altitude max
302 ft
Altitude start
289 ft
Altitude end
-0.4%
Grade
-3.3%
Grade max
2%
Grade min
433 ft
Distance climb
1,493 ft
Distance down
2,110 ft
Distance flat
00:11:49
Avg time

Standard Deviation Details

  • Activities
    • Hike
    • Mountain Bike
    • Gravel Bike
    • Winter Fat Bike
    • Trail Running
    • Snowshoe
  • Riding Area
    Don Valley
    Toronto, Ontario
  • Difficulty Rating
    Blue Rate
  • Voted Difficulty
    Black Diamond (4 votes)
  • Local Popularity
    65 in Mountain Biking [+]
    • 75 in Trail Running
    • 80 in Hiking
    • 5 in Snowshoeing
  • Global Ranking
    #86405 in Mountain Biking [+]
    • #727 in Trail Running
    • #2336 in Hiking
    • #1554 in Snowshoeing
  • Hiking SAC Scale
    T1 Hiking
  • Trail Type
    Singletrack
  • Bike Type
    AM, XC, Fat, CX, Gravel
  • Direction
    Both Directions
    Popular Direction Shown
  • Climb Difficulty
    Green
  • Physical Rating
    Moderate
  • Trail Visibility
    Sometimes hard to follow
  • Dogs Allowed
    Yes
  • eBike Allowed
    No
  • TTFs on Trail
    Bridge, Rock Garden, Other
  • Land Owner
    City of Toronto / Toronto Region Conservation Authority

An old, mostly unmaintained trail used as a connector from the end of Motown back to the Don Mills Underpass. Expect multiple hike-a-bike washout sections and overgrown vegetation. Recommend to take the gravel path or Dr Quads instead.

**There are two sections where you must ride along train tracks. Use caution and be aware of trains.**

This trail is unsanctioned.

Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 0 rides
  •  
6 Months
  • 4 rides
  • 14.6 km avg distance
All
  • 195 rides
  • Last: Jul 25, 2026
c1c2c3c4
January
February
March
April
May
June
July
August
September
October
November
December
update trails status or condition

Standard Deviation Trail Reports

statusdatedescription
Dec 20, 2025 @ 10:36am (America/Toronto)
Dec 20, 2025
Jun 17, 2025 @ 7:41pm
Jun 17, 2025
 Not really bikable for the most part.
Jun 14, 2025 @ 12:22pm
Jun 14, 2025
 very over gown, major erosion along the banks. would avoid it
Jul 7, 2024 @ 2:50pm
Jul 7, 2024
 South side is very overgrown
Jul 7, 2024 @ 2:48pm
Jul 7, 2024
 South side is very overgrown
more »
Status:
on Dec 20, 2025
Icy
Avg: 2.64 (19 votes)
Your vote: 0

view (827)
close
  • Basemap  Map 
    • Pro
    • Pro
    • Pro
    • Pro
    • Pro
    • Pro
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. ?
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 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 standard-deviation trailhead (43.710510, -79.322160)

        Photos

        21 more »
        mtb
        116 |
        Aug 28, 2023 @ 10:21am
        Aug 28, 2023
        mtb
        108 |
        Sep 29, 2021 @ 4:11pm
        Sep 29, 2021
        mtb
        128 |
        Sep 29, 2021 @ 4:11pm
        Sep 29, 2021
        mtb
        85 |
        Sep 29, 2021 @ 4:11pm
        Sep 29, 2021

        Videos

        1 more »
        LegSTD
        mtb
        7:23 | 496 | May 4, 2021 , Toronto

        Routes with this trail

        1057
        DV - Thanksgiving 2020 Outer circuit
        ★ 5.0 • 23 miles • 2,140 ft • 108 • Loop •
        A 37km Don Valley Clockwise circuit connecting as many black & blue rated trails in one big circuit....
        405
        Don Valley 14 KM ridge
        8 miles • 558 ft • 12 •
        Ridge ride; Motown and Don Mills underpass.
        1300
        55k of Fun In The Don
        35 miles • 2,804 ft • 265 • Loop •
        55k of the best the Don has to offer! Starts/ends at Loblaws.

        22 Reviews & Comments


        We hope you've been enjoying Trailforks!

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

        Create a Free Account

        Nearby Trails

        Don Valley

        • #41018 - 6,326 views

        Frequently Asked Questions About Standard Deviation

        ▼ Where is Standard Deviation located?
        Standard Deviation is located in Don Valley, Toronto, Ontario, Canada. It is part of the Don Valley trail network. The trailhead is located at coordinates 43.71051, -79.32216.
        ▼ How hard is Standard Deviation?
        Standard Deviation is rated as Blue difficulty. The physical rating is Moderate. The average grade is 0.4%. The climb difficulty is rated Green.
        ▼ What is the elevation gain for Standard Deviation?
        Standard Deviation has 2 ft of elevation gain. The trail has 17 ft of elevation descent. The elevation ranges from 287 ft to 304 ft.
        ▼ Is Standard Deviation a point to point trail?
        Standard Deviation is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
        ▼ How long is Standard Deviation?
        Standard Deviation is 4,091 ft long. The trail type is singletrack.
        ▼ Are dogs allowed on Standard Deviation?
        Yes, dogs are allowed on Standard Deviation. Please keep dogs on a leash where required and clean up after them.
        ▼ When is the best time of year to ride Standard Deviation?
        Based on activity log data, the most popular months to ride Standard Deviation are:
        • May (45 activities)
        • September (23 activities)
        • June (15 activities)
        Check the reports page for current trail conditions.
        ▼ How do I access Standard Deviation? Where is the closest parking trailhead?
        The closest parking and trailhead locations to Standard Deviation are: View all parking locations in the area.
        ▼ How long does it take to ride Standard Deviation?
        Based on recorded activities, it takes an average of 13 minutes to ride Standard Deviation. The trail is 4,091 ft long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
        ▼ How busy is Standard Deviation?
        Standard Deviation is a moderately popular trail. There have been 832 recorded activities on this trail. The trail has received 827 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.