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Trail Conditions
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- Snow Covered
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- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Ideal
- Dry
- Very Dry
Trail Flow (Ridden Direction)
Trailforks scans users ridelogs 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 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
Trailforks scans ridelogs 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 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.
- most popular
- popular
- less popular
- not popular
ATV/ORV/OHV Filter
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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
Warning
A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
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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 riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
Trails Deemphasized
Trails are shown in grey.
Only show trails with NO bikes.
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SaveThornhill is a long-established network of mixed use trails in Maple Ridge. Originally travelled by equestrian and then motorized users, as well as hikers, in more recent history the area has seen mountain-bike specific trails developed for riders of all ages and skills. These trails were originally unknowingly unauthorized, but are now 'on the map' and the popularity of the riding area is evident as to how popular the trails have become.
The climb is tame, the descents range from mellow blue, to big and boosty double-black, and all points in between. There is something for everyone at Thornhill.
As this is a multi-use trail network -> PLEASE NOTE: When encountering horses, the MTB rider should yield to the horse rider. Yielding to Equestrians: Bikers often scare horses. We are less familiar to them than hikers, so use caution. We recommend that as you approach an equestrian trail user you call out a friendly greeting from far away. Slow down too. You want to start talking from about 50-75 ft away if you can. Horses spook easily, so try asking how the person on the horse would like you to get by. Would they like you to get off and walk (this is great for horses that are really skittish) or should you pass slowly at the next safe spot? Respect for all trail users creates a healthy trail community.
Look for new signs that have been put in place. These signs have been put in place by the city of Maple Ridge with consultation from the Haney Horsemen Association and the Fraser Valley Mountain Bike Association. You will see signs at the bottoms of the downhill specific mountain trails that say "Downhill biking primary trail Expect to encounter bikes". Signs on very popular multi use trails will say "Shared Trail Expect to encounter horses/pedestrians/cyclists Walking speed only". Signs on long standing equestrian trails will say "Steep narrow trail section Cyclists must dismount and walk bikes" and "Horse Primary trail Cyclists must stop to allow horses to pass". And lastly there will be signs for the east side of the hill that has been built and developed for the hiking community these signs will say "Pedestrian trail only". These trails are still mostly unsanctioned and will be use at your own risk.
https://www.mapleridge.ca/DocumentCenter/View/31064/Thornhill-Trails-Map
The climb is tame, the descents range from mellow blue, to big and boosty double-black, and all points in between. There is something for everyone at Thornhill.
As this is a multi-use trail network -> PLEASE NOTE: When encountering horses, the MTB rider should yield to the horse rider. Yielding to Equestrians: Bikers often scare horses. We are less familiar to them than hikers, so use caution. We recommend that as you approach an equestrian trail user you call out a friendly greeting from far away. Slow down too. You want to start talking from about 50-75 ft away if you can. Horses spook easily, so try asking how the person on the horse would like you to get by. Would they like you to get off and walk (this is great for horses that are really skittish) or should you pass slowly at the next safe spot? Respect for all trail users creates a healthy trail community.
Look for new signs that have been put in place. These signs have been put in place by the city of Maple Ridge with consultation from the Haney Horsemen Association and the Fraser Valley Mountain Bike Association. You will see signs at the bottoms of the downhill specific mountain trails that say "Downhill biking primary trail Expect to encounter bikes". Signs on very popular multi use trails will say "Shared Trail Expect to encounter horses/pedestrians/cyclists Walking speed only". Signs on long standing equestrian trails will say "Steep narrow trail section Cyclists must dismount and walk bikes" and "Horse Primary trail Cyclists must stop to allow horses to pass". And lastly there will be signs for the east side of the hill that has been built and developed for the hiking community these signs will say "Pedestrian trail only". These trails are still mostly unsanctioned and will be use at your own risk.
https://www.mapleridge.ca/DocumentCenter/View/31064/Thornhill-Trails-Map
Primary Trail Type: All-Mountain & Downhill
eBikes Allowed:
No
AKA: Grant Hill, Thorn
Land Status: City Managed
Land Manager: City of Maple Ridge

Access Info:
Most start their ride at the gate on 256 Street and climb the road or Blazing Saddles. Alternately, you can start your ride at the cul de sac on 248 Street and climb Bear Ridge. Please be mindful of speed limits on surrounding streets and neighborhoods.
Disclaimer:
Use trails at your own risk. No unauthorized trail building, maintenance or modifications permitted. Please be mindful of speed limits on surrounding streets and neighborhoods
Activities Click to view
- Mountain Bike
35 trails
- Horse
20 trails
- Hike
44 trails
- Trail Running
44 trails
Region Details
- 4
- 3
- 5
- 12
- 1
- 1
Region Status
Caution as of Oct 23, 2021Stats
- Avg Trail Rating
- Trails (view details)
- 37
- Trails Mountain Bike
- 36
- Trails E-Bike
- 13
- Trails Horse
- 21
- Trails Hike
- 44
- Trails Trail Running
- 44
- Total Distance
- 16 miles
- Total Descent
- 3,297 ft
- Total Vertical
- 824 ft
- Highest Trailhead
- 1,089 ft
- Reports
- 2,490
- Photos
- 444
- Ridden Counter
- 22,503
Popular Thornhill Mountain Biking Trails
Thornhill Mountain Bike Routes
title | rating | distance |
---|---|---|
SD43 Practice Enduro #2 | 4 miles | |
Tour de Thornhill October 2023 | 12 miles | |
Tour de Thornhill | 12 miles | |
13 mile Thornhill All-Mountain Ride | popular ridelog | 13 miles |
13 mile Thornhill All-Mountain Ride | popular ridelog | 13 miles |
16 mile Thornhill Ride | popular ridelog | 16 miles |
9 mile Thornhill Ride | popular ridelog | 9 miles |
7 mile Thornhill All-Mountain Ride | popular ridelog | 7 miles |
8 mile Thornhill All-Mountain Ride | popular ridelog | 8 miles |
7 mile Thornhill All-Mountain Ride | popular ridelog | 7 miles |
Photos of Thornhill Mountain Bike
trail: Rip n' Dip
298 |
Nov 1, 2017 @ 11:04am
Nov 1, 2017
trail: Rip n' Dip
315 |
Nov 1, 2017 @ 11:04am
Nov 1, 2017
trail: Rip n' Dip
326 |
Nov 1, 2017 @ 11:03am
Nov 1, 2017
trail: Heads Up
144 |
Oct 31, 2017 @ 10:41pm
Oct 31, 2017
trail: Heads Up
133 |
Oct 31, 2017 @ 10:41pm
Oct 31, 2017
trail: Thornstar
285 |
Oct 31, 2017 @ 10:37pm
Oct 31, 2017
trail: Trail Dweller
203 |
Oct 31, 2017 @ 10:33pm
Oct 31, 2017
trail: O.S.R.
219 |
Aug 30, 2017 @ 9:48am
Aug 30, 2017Videos of Thornhill Mountain Bike

trail: Rip n' Dip
144 |
May 6, 2022

trail: Rip n' Dip
109 |
Apr 16, 2022

trail: Rip n' Dip
31 |
Apr 12, 2022

trail: Thornhill Trail
|
Jul 21, 2021

trail: Thornstar
|
Jul 8, 2021

trail: Thornstar
|
Jul 8, 2021

trail: Thornstar
|
Jul 8, 2021
Current Trail Warnings
status | trail | date | condition | user | info |
---|---|---|---|---|---|
West side access | Nov 26, 2023 @ 11:02am Nov 26, 2023 | Wet | Dawgprimo15 |
Recent Trail Reports
status | trail | date | condition | info | user |
---|---|---|---|---|---|
Sessions | Dec 1, 2023 @ 3:01pm 1 day | Variable | AFM73 FVMBA - NORTH | ||
O.S.R. | Dec 1, 2023 @ 9:38am 2 days | Wet | Rhino73 | ||
Blazing Saddles | Nov 28, 2023 @ 3:12pm Nov 28, 2023 | Dry | deanw | ||
Thornstar | Nov 26, 2023 @ 5:28pm Nov 26, 2023 | Ideal | judah-g3r | ||
Nick's | Nov 26, 2023 @ 5:28pm Nov 26, 2023 | Ideal | judah-g3r | ||
Heads Up | Nov 26, 2023 @ 11:02am Nov 26, 2023 | Variable | Dawgprimo15 | ||
Access | Nov 26, 2023 @ 11:02am Nov 26, 2023 | Ideal | Dawgprimo15 | ||
SHAMALAMADINGDONG | Nov 26, 2023 @ 11:02am Nov 26, 2023 | Dry | Dawgprimo15 | ||
Trail Dweller | Nov 26, 2023 @ 11:02am Nov 26, 2023 | Ideal | Dawgprimo15 | ||
Ripcord | Nov 26, 2023 @ 11:02am Nov 26, 2023 | Variable | Dawgprimo15 |
Activity Feed
username | action | type | title | date |
---|---|---|---|---|
AFM73 | add | report | Sessions | Dec 1, 2023 @ 3:01pm 1 day |
Rhino73 | add | report | O.S.R. | Dec 1, 2023 @ 9:40am 2 days |
Leon27w | difficultyvote | trail | Thornstar | Nov 30, 2023 @ 10:50pm 2 days |
THUNDERCLAP | wishlist | trail | O.S.R. | Nov 28, 2023 @ 9:14pm Nov 28, 2023 |
Ross60 | add | video | Thornstar on Thornhill, Maple Ridge, BC (Such a fun trail) | Nov 28, 2023 @ 8:55pm Nov 28, 2023 |
Recent Comments
username | type | title | comment | date |
---|---|---|---|---|
report | Thanks Ryan. Just need to get out and rip the... | Nov 18, 2023 @ 3:03pm Nov 18, 2023 | ||
report | Thanks for the work. Trail is running great | Nov 18, 2023 @ 12:50pm Nov 18, 2023 | ||
report | Not sure what additional description would... | Nov 12, 2023 @ 6:44am Nov 12, 2023 | ||
report | maybe a better description of where the tree... | Nov 11, 2023 @ 11:25pm Nov 11, 2023 | ||
report | Amazing, thank you | Oct 29, 2023 @ 12:24pm Oct 29, 2023 |
Nearby Areas
name | distance | ||||
---|---|---|---|---|---|
Glen Valley Trails | 1 | 2.7 km | |||
Silver Valley | 11 | 4 | 4.4 km | ||
Woodlot | 8 | 10 | 3 | 4.9 km | |
Golden Ears Provincial Park | 1 | 2 | 1 | 6.4 km | |
Stave West - Rolley Lake | 2 | 2 | 7.2 km |
Local Badges
-
Tour de Thornhill6 awarded -
Completionist15 awarded
Bike & Skill Parks
name | type | city | rating |
---|---|---|---|
Maple Ridge MTB Skills Park | skill park | Maple Ridge |
Local Mountain Biking Directory
-
Maple Ridge CycleBike Shop
-
Trek Bicycle Maple RidgeBike Shop
-
Local RideBike Shop
Local Products
Local Trail Supporters
- Ryan and Paul
- Dean
Activity Type Stats
activitytype | trails | distance | descent | descent distance | total vertical | rating | global rank | state rank | photos | reports | routes | ridelogs |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mountain Bike | 35 | 12 miles | 2,782 ft | 7 miles | 702 ft | #292 | #44 | 449 | 2,483 | 3 | 20,831 | |
E-Bike | 13 | 3 miles | 243 ft | 4,140 ft | 630 ft | 1,759 | 2 | 1,215 | ||||
Horse | 20 | 9 miles | 1,483 ft | 4 miles | 692 ft | #100 | #6 | 1 | 748 | 5 | ||
Hike | 44 | 15 miles | 3,025 ft | 8 miles | 761 ft | #193 | #37 | 10 | 2,459 | 3 | 683 | |
Trail Running | 44 | 15 miles | 3,025 ft | 8 miles | 761 ft | #195 | #38 | 2,459 | 3 | 683 |
- By averyspacehall & contributors
- Admins: FVMBA - ADMIN, lee5986, mtbmudhoney, Hams, FVMBA - NORTH, FVMBA-Mission
- #4545 - 97,211 views
- thornhill activity log | embed map of Thornhill mountain bike trails | thornhill mountain biking points of interest
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