3 miles
620 ft
-646 ft
5,089 ft
High Point
Trail Supporters, Builders & Maintainers of 89 - Samelius TH - Big Pine TH Trail


  • Riding Area
    Keystone, South Dakota
  • Difficulty Rating
  • Trail Type
  • Bike Type
    AM, XC, Fat
  • Trail Usage
  • Direction
    Both Directions
    Popular direction shown
  • Climb Difficulty
    Black Diamond
  • Physical Rating
  • Season
    Year Round
  • eBike Allowed
  • TTFs on Trail
    Rock Garden
  • Global Ranking
  • Land Manager
    US Forest Service

This section of Trail 89 has great views into the Harney Range. Expect mainly single track trail with a bit of two track in the mix. Pay attention at intersections and markings as it is easy to go the wrong way a several locations. This short section of the Centennial Trail is a fun outing. There is one short difficult climb on this section but overall the trail is an intermediate difficulty.

Access Info

Park at either Samelius Trail Head located on the north side of US-16 about three miles east of Three Forks or at Big Pine Trail Head located on the north side of SD-244 about two miles west of Mt. Rushmore.

Local Trail Association
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More Stats for Trail 89 - Samelius TH - Big Pine TH bike trail
  • Altitude change
    -26 ft
  • Altitude min
    4,777 ft
  • Altitude start
    5,069 ft
  • Altitude end
    5,043 ft
  • Grade
  • Grade max
  • Grade min
  • Distance climb
    1 miles
  • Distance down
    1 miles
  • Distance flat
    3,090 ft
  • view trail stats
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Layers winter
Trail Style
  • ?
Activity Type
Trail Conditions
  • Unknown
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Dry
  • Very Dry
Directions to trail-89-samelius-th-big-pine-th trailhead (43.898687, -103.485556)
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Aug 15, 2018 @ 6:55pm
Aug 15, 2018
Trail 89 - Samelius TH - Big...

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