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
  • Voted Difficulty
    Black Diamond (4 votes)
  • Local Popularity
    60 in Mountain Biking [+]
    • 55 in Trail Running
    • 100 in Hiking
    • 100 in Snowshoeing
    • 5 in Winter Fat Biking
    • 5 in Gravel Biking
  • Global Ranking
    #103744 in Mountain Biking [+]
    • #22252 in Trail Running
    • #1306 in Hiking
    • #665 in Snowshoeing
    • #4782 in Winter Fat Biking
    • #15552 in Gravel Biking
  • Provincial Ranking
    #2,501 in Mountain Biking · Ontario [+]
    • #429 in Trail Running
    • #58 in Hiking
    • #110 in Snowshoeing
    • #615 in Winter Fat Biking
    • #896 in Gravel Biking
  • 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
  • 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.

Tags

Recent Activity on Trail

Past Week
  • 0 rides
  •  
6 Months
  • 4 rides
  • 9 miles 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 (20 votes)
Your vote: 0

view (827)
close
      Directions to standard-deviation trailhead (43.710510, -79.322160)

      Photos

      21 more »
      mtb
      123 |
      Aug 28, 2023 @ 10:21am
      Aug 28, 2023
      mtb
      122 |
      Sep 29, 2021 @ 4:11pm
      Sep 29, 2021
      mtb
      135 |
      Sep 29, 2021 @ 4:11pm
      Sep 29, 2021
      mtb
      94 |
      Sep 29, 2021 @ 4:11pm
      Sep 29, 2021

      Videos

      1 more »
      LegSTD
      mtb
      7:23 | 500 | May 4, 2021 , Toronto

      Routes with this trail

      ★ 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....
      8 miles • 558 ft • 12 •
      Ridge ride; Motown and Don Mills underpass.
      35 miles • 2,804 ft • 265 • Loop •
      55k of the best the Don has to offer! Starts/ends at Loblaws.
      2.2 ★★★★★
      20 Ratings
      5 ★ 5%
      4 ★ 15%
      3 ★ 10%
      2 ★ 35%
      1 ★ 35%

      22 Reviews & Comments

      CarbonFork
      Unrideable east of the halfway link up to Motown
      dbirch16
      An addition to my earlier comment: the very beginning of the trail (starting from the north) to the first bridge is good. Then go over the bridge and pick up B. Lowtown to continue going south on enjoyable trails.
      ClancyTheFish
      Rode back from Motown. Beginner rider, figured it would be a piece of cake after Motown given blue rating. All sketch, no fun. Honestly least favourite trail in Don so far.

      We hope you've been enjoying Trailforks!

      Create a FREE account to view all trail reviews and much more.

      • #41018 - 6,460 views

      Frequently Asked Questions

      ▼ 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.
      ▼ 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.