5 miles
274 ft
-2,417 ft
2 miles
High Point
Trail Supporters, Builders & Maintainers of Thunder MTN DH Trail

Thunder MTN DH Details

  • Riding area
    Kirkwood Mountain Resort
    Kirkwood, California
  • Difficulty rating
  • Trail type
  • Bike type
  • Trail Usage
    Biking Primary
  • Direction
    Downhill Primary
    Popular direction shown
  • Climb Difficulty
    Black Diamond
  • Physical rating
  • TTFs on trail
    Rock Garden
  • Global Ranking
  • Land Manager

This trail is usually open from from June until the first big storm in late October. It can access from the Thunder mountain trail head and can be looped by riding up the castle rock trail on the North side of 88. This a difficult dh that starts off with flowing single track on loose small rocks and then gets chunky and technical for the last 2/3. One of the longer and more technical downhills in the region.

Bike Park

Local Trail Association
More Stats for Thunder MTN DH mountain bike trail
  • Altitude change
    -2,143 ft
  • Altitude min
    7,160 ft
  • Altitude start
    9,303 ft
  • Altitude end
    7,160 ft
  • Grade
  • Grade max
  • Grade min
  • Distance climb
    3,446 ft
  • Distance down
    4 miles
  • Distance flat
    1,277 ft
  • view trail stats
on Jun 12, 2018
Avg: 5 (1 votes)

view (21)
Layers winter
Trail Style
  • ?
Trail Conditions
  • Unknown
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Dry
  • Very Dry
Directions to thunder-mtn-dh trailhead (38.677840, -120.084180)
update trails status or condition

Thunder MTN DH Trail Reports

Jun 12, 2018 @ 6:28pm
Jun 12, 2018
Cleaned up and clear. Downed trees have been sawed out. Trail has been swept. Brush trimmed back. Go rip!
view all reports »


more »
108 |
Nov 28, 2017 @ 8:55pm
Nov 28, 2017
Thunder MTN DH, El Dorado Hills
80 |
Nov 28, 2017 @ 8:53pm
Nov 28, 2017
Thunder MTN DH, El Dorado Hills
73 |
Nov 28, 2017 @ 8:53pm
Nov 28, 2017
Thunder MTN DH, El Dorado Hills
89 |
Nov 27, 2017 @ 7:27pm
Nov 27, 2017
Thunder MTN DH, Kirkwood

Trail Lists

Routes with this trail

Thunderous Loop
28 miles

2 Reviews & Comments

  • + 1
flag whoisadam (Jul 23, 2018 at 11:09)
 An amazing Gem of a trail. One of the most beautiful climbs I have ever done and the downhill is a hoot. Fast flowy parts through wild flowers at the top with epic views, then tons of technical rocks garden through the forest. I posted a video of the trail in the VIDEO TAB. This is probably my favorite ride in the Kirkwood area. I found this more fun than the Silver Fork DH trail but the rocks gardens slightly easier than Silver Fork DH.
  • + 1
flag backyardadventuregirl (Aug 15, 2018 at 18:18)
 This ride is definitely better done by riding up Castle Rock and then up Thunder Mountain to the top and then back down. Can do the last .5 miles as a hike or a bike. The Thunder Mountain DH section of the loop is chewed up. It looks like it gets a lot of horse use so there are lots of loose rocks in-between the larger rock drops. Disappointing but we'll definitely do it the other way some time.

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MTN BIKE | Thunder MTN Downhill | Kirkwood, CA
3:01 | 121 | Jul 23, 2018 , Kirkwood
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