12.3 miles
Distance
1,677 ft
Climb
-1,736 ft
Descent
2,586 ft
High Point
A 3Rivers Trails Permit or MTO permit is required to access this route. See the 3 Rivers Trails website for permit details.
The Grand Black is an extension to the Black Porcupine which adds about 20 km and 200 m of climbing to the Black Porcupine, bring the total route distance to 80 km with 2000 m of climbing
Detailed Description
3Rivers: The Grand Black (extension to the Black Porcupine) is a 12 mile moderately popular expert route located near Thornhill. This mountain bike primary route. This route includes 5 trails. This route climbs 1,677 ft with a max elevation of 2,586 ft then descends -1,736 ft.
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Trails in Route
| 5 miles | |||||
Details
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Riding area
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Primary ActivityMountain Bike
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Other Activities
- E-Bike
- Hike
- Trail Running
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Difficulty ratingBlack Diamond
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eBike Allowed
More Stats for 3Rivers: The Grand Black (extension to the Black Porcupine) mountain bike route
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Avg time1 hr 25 min
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Altitude change-59 ft
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Altitude min1,346 ft
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Altitude start1,686 ft
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Altitude end1,627 ft
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Grade-0.1%
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Grade max-18.9%
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Grade min42.3%
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Distance climb5 miles
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Distance down6 miles
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Distance flat3,091 ft
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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)
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The colour categories are based on what percentage of riders are riding a trail in its intended direction.
The colour categories are based on what percentage of riders are riding a trail in its intended direction.
- > 96%
- > 90%
- > 80%
- > 70%
- > 50%
- < 50%
- bi-directional trail
- no data
Trail Last Ridden
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- < 6 months
- > 6 months
Trail Ridden Direction
The intended direction a trail should be ridden.
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Trail Popularity ?
Trailforks scans ridelogs 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 rides = more kinetic energy = warmer colors.
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Activity Recordings
Trailforks users anonymized public ridelogs from the past 6 months.
- mountain biking recent
- mountain biking (>6 month)
- hiking (1 year)
- moto (1 year)
Activity Recordings
Trailforks users anonymized public skilogs from the past 12 months.
- Downhill Ski
- Backcountry Ski
- Nordic Ski
- Snowmobile
Winter Trails
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