Grand Chasm Details
Riding areaTrowbridge Forest
Thunder Bay, Ontario
Bike typeAM, XC, Fat
Trail UsageBiking Only
DirectionDownhill PrimaryPopular direction shown
TTFs on trailBerm, Bridge, Drop, Jump, Ladder Bridge, Rock Face
Ride in rainYes
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 min899 ft
Altitude max900 ft
Altitude start900 ft
Altitude end900 ft
Avg reverse time00:07:48
- view trail stats
- Snow Packed
- Snow Covered
- Freeze/thaw Cycle
- Prevalent Mud
- Very Dry
Grand Chasm Trail Reports
Jun 27, 2018 @ 12:20pmJun 27, 2018
|reporter Trails are in top condition and ready to ride!|
May 14, 2018 @ 5:25amMay 14, 2018
|reporter Open for the season!|
May 11, 2018 @ 5:13amMay 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 @ 7:37amMay 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 @ 7:48amApr 2, 2018
|reporter Ice is starting to develop on many of the trails. Please ride with care.|
Routes with this trail
|Shuniah FORTY Miner race||7 miles|
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