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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.
  • > 96%
  • > 90%
  • > 80%
  • > 70%
  • > 50%
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  • bi-directional trail
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Trail Last Ridden
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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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Missing Trails
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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.
BC Backroad Status

Service Road Atlas is a free to use, community-driven service for viewing and creating reports on the numerous back-country service roads around B.C. and Alberta.

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Slope Aspect
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        No description for Merrimack has been added yet! Login or register to submit one.
        Activities Click to view
        Region Details
        • 9
        • 35
        • 54
        • 4

        Region Status
        Open as of 1 day

        Stats

        Avg Trail Rating
        Trails (view details)
        102
        Trails Mountain Bike
        103
        Trails E-Bike
        73
        Trails Hike
        92
        Trails Trail Running
        92
        Trails Snowshoe
        5
        Trails Nordic Ski
        5
        Total Distance
        49 miles
        Total Descent
        5,821 ft
        Total Vertical
        348 ft
        Highest Trailhead
        499 ft
        Reports
        747
        Photos
        108
        Ridden Counter
        23,948
        Sub Regions

        Popular Merrimack Mountain Biking Trails

        100 2.0 2,138 ft 75 ft 824
        Flat, easy doubletrack connector that connects the parking lot to the trail, and passes by Blodget Hill Summit trail in the process.
        100 4.0 3,732 ft 169 ft 648
        Instead of heading straight up Blodgett Hill, try this instead. The Bypass takes you on a nice, windy, somewhat technical singletrack offshoot climb that is longer and more fun.
        85 4.0 1 mile 70 ft 619
        is one of the more fun trails at Horse Hill. As the name implies, it's a twisty run over roling terrain, though west to east is definitely the DH direction. As a climb, is more difficult, though not incredibly so. There are a few minor...
        95 5.0 2,298 ft 66 ft 588
        Outer Ledges trail piggybacks off of Ledges trail, and is a really fun, twisty piece of trail with some technical rocks and fun switchbacks. While not very long, the trail can be challenging depending on skill level, and if you choose...
        90 4.5 1 mile 37 ft 542
        Like most of the trails out at Grater, is full of twists and turns. Definitely one of the easiest trails out here though, with not much as far as climbs or technical features.
        90 4.3 1,730 ft 29 ft 497
        Ledges trail is also sometimes called Inner Ledges trail, due to the fact that Outer Ledges trail piggybacks off of it. Definitely a fun, short little DH with one steeper rocky section that could be intimidating, depending on skill...
        75 4.8 2 miles 279 ft 473
        Yet another fun, twisty trail out at Grater! Capped at both ends with windy singletrack through a tight brushy forest with a lot of punchy ups and downs, and a good amount of tech. The middle of the trail opens up to wider switchbacks...
        90 5.0 1,325 ft 5 ft 469
        Popular black diamond difficulty singletrack. This mountain bike primary trail can be used downhill primary. On average it takes 1 minutes to complete this trail.

        Recent Ride Log Activity in Region

        Today
        • 0 rides
        Yesterday
        • 13 rides
        Past Week
        • 77 rides

        Merrimack Mountain Bike Routes

        4 miles 241 ft 2 Loop
        A quick ride on the west trails near Horse Hill Nature Preserve.
        6 miles 395 ft 4
        Quick ride for a lunch break
        10 miles 1,322 ft 8
        Skip the doubletrack trails and get right to it. Climb to via , , Milipede, , and then descend via ,
        28 miles 1,886 ft 23 Loop
        For the endurance junkies. Hits up almost everything at Horse Hill, Wasserman, and Grater.
        6 miles 461 ft 5 Point to Point
        This route is meant to be a rather quick one that focuses on the twists and turns while working through...
        2.0 8 miles 869 ft 18
        Grater Woods Fun Sunday Loop.

        Photos of Merrimack Mountain Bike

        26 |
        May 25, 2026 @ 2:16pm
        May 25, 2026
        22 |
        Apr 17, 2026 @ 3:17pm
        Apr 17, 2026
        20 |
        Apr 17, 2026 @ 2:37pm
        Apr 17, 2026
        27 |
        Aug 1, 2025 @ 2:49pm
        Aug 1, 2025
        24 |
        Aug 1, 2025 @ 2:49pm
        Aug 1, 2025
        30 |
        Aug 1, 2025 @ 2:49pm
        Aug 1, 2025
        29 |
        Aug 1, 2025 @ 2:48pm
        Aug 1, 2025
        42 |
        Aug 1, 2025 @ 2:48pm
        Aug 1, 2025
        24 |
        Nov 4, 2024 @ 12:33pm
        Nov 4, 2024
        49 |
        Aug 15, 2023 @ 5:55am
        Aug 15, 2023
        61 |
        Aug 9, 2023 @ 2:23pm
        Aug 9, 2023
        66 |
        Aug 9, 2023 @ 2:18pm
        Aug 9, 2023

        Videos of Merrimack Mountain Bike

        A Granite State Ride | RAW MTB
        2:02 | 10827 | Nov 12, 2016
        Trail Ride
        trail: Loop
        8:02 | 149 | Dec 5, 2015
        Thunder Gut Feeling on the North Shore Mt Anne...
        trail: Loop
        8:22 | 236 | Nov 13, 2015
        ESC Attitash race course
        trail: Rocky
        4:05 | 272 | Jul 13, 2014
        Diamond Hill DH
        trail: Rocky
        0:49 | 243 | Jun 25, 2014
        UConn Cycling Rides Plattekill
        trail: Quarry
        5:29 | 240 | Apr 9, 2014
        Through the Fall V2
        trail: Skyline
        6:35 | 67947 | Nov 7, 2013
        Rocky Hill MX
        trail: Rocky
        9:27 | 172 | Jul 26, 2013

        Recent Trail Reports

        Activity Feed

        usernameactiontypetitledate
        TQ-6288addreportactivity #97211054
        Jun 17, 2026 @ 2:56pm
        1 day
        TQ-6288riddentrailactivity #97210936
        Jun 17, 2026 @ 2:54pm
        1 day
        KylerWwishlistregionactivity #97129257
        Jun 16, 2026 @ 12:03pm
        2 days
        JustinNbZWePwishlisttrailactivity #96768752 and 2 more
        Jun 11, 2026 @ 4:38pm
        Jun 11, 2026
        greenmachineltvotetrailactivity #96097879 and 8 more
        Jun 2, 2026 @ 11:17am
        Jun 2, 2026

        Recent Comments

        usernametypetitlecommentdate
        mappermooktrailSalamanderMellow fun flowy riding, except for a bridge...
        May 19, 2026 @ 8:29am
        May 19, 2026
        TrevorWellmantrailHappy FlowmoreAwesome descent with lots of fun little jumps...
        Aug 6, 2025 @ 6:16pm
        Aug 6, 2025
        TrevorWellmantrailCaddyshackAbsolutely great trail, short but a highlight...
        Aug 6, 2025 @ 6:15pm
        Aug 6, 2025
        TrevorWellmantrailPush UpFun for green, wish it were longer
        Aug 6, 2025 @ 6:14pm
        Aug 6, 2025
        TrevorWellmantrailGPC 1 & 2Great tech trail, some fun sections
        Aug 6, 2025 @ 6:13pm
        Aug 6, 2025

        Local Badges


        Activity Type Stats

        activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
        Mountain Bike10349 miles5,820 ft19 miles348 ft
        #982#388105747716,500
        E-Bike7339 miles4,944 ft16 miles325 ft
        #3,013#1,1166631588
        Hike9240 miles5,144 ft16 miles348 ft
        #4,259#1,49773912,052
        Trail Running9240 miles5,144 ft16 miles348 ft
        #4,185#1,275739296
        Snowshoe53 miles223 ft1 mile69 ft
        #1,001#494878
        Nordic Ski53 miles223 ft1 mile69 ft
        #1,726#888825

        Frequently Asked Questions About Merrimack

        What are the best places to ride in Merrimack?
        Merrimack has 4 areas to explore for mountain biking. The top rated areas are:
        What are the highest rated mountain biking trails in Merrimack?
        The highest rated mountain biking trails in Merrimack are: View all mountain biking trails sorted by rating.
        What is the best time of the year to ride in Merrimack?
        Based on ride log data, the most popular months to ride in Merrimack are:
        • May (299 activities)
        • June (291 activities)
        • July (275 activities)
        Check the Merrimack reports page for current trail conditions, recent trail reports, and seasonal information from the local community.
        Where can I park to ride in Merrimack?
        There are 7 parking locations listed in Merrimack. The most popular parking spots are: View all parking and trailhead locations on the map to plan your visit.
        • By StephaneMarceauTF Pro TRAILFORKS & contributors
        • Admins: SNH NEMBA, SNH NEMBA
        • #16795 - 5,873 views

        Downloading of trail gps tracks in kml & gpx formats is enabled for Merrimack.
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