more stats
1,572 ft
Distance
-93 ft
Descent
00:04:57
Avg time
-93 ft
Altitude change
62 ft
Altitude min
155 ft
Altitude max
155 ft
Altitude start
62 ft
Altitude end
-5.9%
Grade
-19.1%
Grade max
-0.7%
Grade min
1,539 ft
Distance down
36 ft
Distance flat
00:04:57
Avg time

BTV Details

  • Activities
    • Mountain Bike
    • E-Bike
  • Riding Area
    Under Thunder Bike Park
    Juneau, Alaska
  • AKA
    Jimmy Hats
  • Difficulty Rating
    Black Diamond Rate
  • Local Popularity
    90 in Mountain Biking [+]
    • 5 in E-Biking
  • Global Ranking
    #41261 in Mountain Biking
  • Trail Type
    Singletrack
  • Bike Type
    DH, AM
  • Climb Difficulty
    Green
  • Physical Rating
    Moderate
  • Trail Visibility
    Always easy to follow
  • Dogs Allowed
    Yes
  • eBike Allowed
    Yes up to Class 1
  • TTFs on Trail
    Berm, Drop, Jump, Gap Jump, Pump Track
  • Ride in Rain
    Yes
  • Year Opened
    2019
  • Land Owner
    CBJ Parks and Recreation

BicycleTerrainVehicle is a reclaimed ATV track through turn of the 20th century clearcut. low gradient shale loam, root tech, jumps.

Access Info

underthunder

Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 0 rides
  •  
6 Months
  • 1 rides
  • 14 miles avg distance
All
  • 21 rides
  • Last: Jun 26, 2026
c1c2c3c4
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update trails status or condition

BTV Trail Reports

statusdatedescription
Sep 20, 2025 @ 5:03pm (America/Anchorage)
Sep 20, 2025
 Big Fallen Tree before the Wood Ramp/Gap Jump
Dec 28, 2023 @ 2:51pm
Dec 28, 2023
 Large tree fallen over second to last ramp jump/drop midway. Walk around required.
Aug 2, 2023 @ 3:34pm
Aug 2, 2023
May 21, 2023 @ 9:40pm
May 21, 2023
Working on building up some of the berms and fixing drainage on the lower section of trail while also taking out some of the dead standing that...
May 7, 2023 @ 2:25pm
May 7, 2023
 Great riding right out of the gate for the season.
more »
Status:
on Sep 20, 2025
Wet
Avg: 4.21 (3 votes)
Your vote: 0

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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
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Max Vehicle Width
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Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
BC Backroad Status

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Slope Aspect
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Flat N NE E SE S SW W NW
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        Directions to btv trailhead (58.384540, -134.556110)

        Photos

        10 more »
        94 |
        Jul 3, 2022 @ 7:24pm
        Jul 3, 2022
        230 |
        Nov 29, 2019 @ 2:23pm
        Nov 29, 2019
        188 |
        Nov 29, 2019 @ 2:23pm
        Nov 29, 2019
        172 |
        Nov 29, 2019 @ 2:22pm
        Nov 29, 2019

        Videos

        1 more »
        Murph hits Ben :D Friday Fails Submission
        0:10 | 440 | Jun 16, 2020 , Juneau

        2 Reviews & Comments


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        Nearby Trails

        Under Thunder Bike Park

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        Frequently Asked Questions About BTV

        ▼ Where is BTV located?
        BTV is located in Under Thunder Bike Park, Juneau, Alaska, United States. It is part of the Under Thunder Bike Park trail network. The trailhead is located at coordinates 58.38454, -134.55611.
        ▼ How hard is BTV?
        BTV is rated as Black Diamond difficulty. The physical rating is Moderate. The average grade is 5.9%. The climb difficulty is rated Green.
        ▼ What is the elevation gain for BTV?
        The trail has 93 ft of elevation descent. The elevation ranges from 62 ft to 155 ft.
        ▼ How long is BTV?
        BTV is 1,572 ft long. The trail type is singletrack.

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