12.6 miles
Distance
2,460 ft
Climb
-2,460 ft
Descent
1 mile
High Point
1 ft
Altitude change
5,234 ft
Altitude min
5,242 ft
Altitude start
5,243 ft
Altitude end
-76.1%
Grade max
42.9%
Grade min
6 miles
Distance climb
5 miles
Distance down
1 mile
Distance flat

Absolutely beautiful and tough loop in The Lost Sierra. The road climb up has some spectacular views. About 8 miles of climbing and 4 miles of descending. The descent is quite technical, lots of rocks. If you're riding on a weekend there will be more and more hikers as you near the bottom.

Upper Jamison Creek Campground has parking spots for day use. Really nice bathrooms and water as well.

Detailed Description
Jamison Creek Loop is a 13 mile popular expert route located near Graeagle California. This mountain bike only route can be used one direction. This route includes 6 trails. This route climbs 2,460 ft with a max elevation of 7,264 ft then descends -2,460 ft.

Trail Issues on Route

  • Significant Issue / Amber: 3 trails (newest: Jan 9, 2026)
Local Trail Association
Local trail association
Sierra Buttes Trail Stewardship (www.sierratrails.org)
Please consider joining or donating to the local riding association to support trail development & maintenance.
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Stats

  • Distance
    13 miles
  • Altitude min
    5,234 ft
  • Altitude start
    5,242 ft
  • Altitude end
    5,243 ft
  • Climb
    2,460 ft
  • Descent
    -2,460 ft
  • Grade max
    -76.1%
  • Grade min
    42.9%
  • Distance climb
    6 miles
  • Distance down
    5 miles
  • Distance flat
    1 mile

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Trails in Route

Details

  • Riding area
    Lakes Basin
  • Primary Activity
    Mountain Bike
  • Difficulty rating
    Black Diamond
  • Route Type
    Loop
  • Direction
    One Direction
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    Photos

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    Videos

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    youtuber Jamison / Graeagle, CA / MTB
    Jamison / Graeagle, CA / MTB
    7:30 | 67 | comments: 0 | favs:
    Nov 5, 2025
    youtuber Jamison / Graeagle, CA / MTB
    Jamison / Graeagle, CA / MTB
    7:30 | 47 | comments: 0 | favs:
    Nov 5, 2025

    Recent Trail Reports Along Route

    statustraildateconditiondescription
    Jamison Creek Trail (Grass Lake)
    May 31, 2026 @ 8:13am (America/Los_Angeles)
    May 31, 2026
    		one tree down
    Sloat McRae Road
    Jan 9, 2026 @ 11:18am (America/Los_Angeles)
    Jan 9, 2026
    Jamison Creek Trail (Rock Garden)
    Jan 9, 2026 @ 11:18am (America/Los_Angeles)
    Jan 9, 2026
    Jamison Creek Trail (Top)
    Jan 9, 2026 @ 11:18am (America/Los_Angeles)
    Jan 9, 2026
    Jamison Creek Trail (Smith to Mine)
    Jul 12, 2025 @ 9:48am
    Jul 12, 2025
    more reports »
    • By bkxcTF Pro Everstoke & contributors
    • #41725 - 1,616 views

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