3,558 ft
Distance
00:06:26
Avg time

Grand Chasm Details

  • Riding area
    Trowbridge Forest
    Thunder Bay, Ontario
  • Difficulty rating
  • Trail type
    Singletrack
  • Bike type
    AM, XC, Fat
  • Trail Usage
    Biking Only
  • Direction
    Downhill Primary
    Popular direction shown
  • Climb Difficulty
    Blue
  • Physical rating
    Moderate
  • Season
    May-Oct
  • TTFs on trail
    Berm, Bridge, Drop, Jump, Ladder Bridge, Rock Face
  • Ride in rain
    Yes
  • Global Ranking
    #1672

Originally built in the the mid 90's the area around Grand Chasm has seen significant changes over the years and multiple lines developed as local riders looked to take advantage of the terrain and natural features around the heart of the old mines.

In 2011 the local mountain bike club, in consultation with IMBA representatives, started to redevelop and align the trails in order to improve flow, length and sustainability of the trail. After nearly 4 years of work the final produce was unveiled and a new 1.1km signature trail was opened in Shuniah Mines. Riders are now treated to a true flow trail with long sweeping sections, bermed corners, and plenty of optional tech features including; a ladder bridge, roll-able jumps and rock features. The new trail takes advantage of modern trail building techniques, while still maintaining the "old school" feel.

*New for 2016*
Due to the closures of old mine shafts in the area by the city of Thunder Bay, the top portion of Grand Chasm has required significant re-routing. Local builders with the support of the city have been given the opportunity to complete the first machine built section of trail in Shuniah Mines. Expected to open when work is completed in the spring of 2016, the new top portion of the trail will contain some of the largest XC features every constructed in the trail system.

Local Trail Association
More Stats for Grand Chasm mountain bike trail
  • Altitude min
    899 ft
  • Altitude max
    900 ft
  • Altitude start
    900 ft
  • Altitude end
    900 ft
  • Grade max
    -0.445%
  • Grade min
    0.728%
  • Avg time
    00:06:26
  • Avg reverse time
    00:07:48
  • view trail stats
Status:
on Jun 27, 2018
Dry
Avg: 5 (3 votes)

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Layers winter
Trail Style
  • ?
Trail Conditions
  • Unknown
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Dry
  • Very Dry
Directions to grand-chasm trailhead (48.476740, -89.206450)
update trails status or condition

Grand Chasm Trail Reports

datedescription
Jun 27, 2018 @ 12:20pm
Jun 27, 2018
reporter Trails are in top condition and ready to ride!
May 14, 2018 @ 5:25am
May 14, 2018
reporter Open for the season!
May 11, 2018 @ 5:13am
May 11, 2018
reporter There is still frost thaw occurring in sections of these trails. They can be ridden, but please walk your bike through vulnerable sections.
May 7, 2018 @ 7:37am
May 7, 2018
reporter Trails are drying well, but still have some areas dealing with freeze/thaw. These trails should be open within the week. In the mean time please...
Apr 2, 2018 @ 7:48am
Apr 2, 2018
reporter Ice is starting to develop on many of the trails. Please ride with care.
view all reports »

Photos

more »
38 |
Jan 27, 2018 @ 8:36am
Jan 27, 2018
Grand Chasm, Thunder Bay
69 |
Sep 19, 2017 @ 7:01am
Sep 19, 2017
Grand Chasm, Thunder Bay
210 |
Jan 16, 2017 @ 5:19pm
Jan 16, 2017
Grand Chasm, Thunder Bay
256 |
Aug 9, 2016 @ 7:52am
Aug 9, 2016
Grand Chasm, Thunder Bay

Routes with this trail

titleratingdistance
Shuniah FORTY Miner race
7 miles

Reviews / Comments

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Videos

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Shuniah Mines Pretzel Trail
519 | Nov 6, 2014 , Thunder Bay
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