2 miles
563 ft
-71 ft
Avg time
Trail Supporters, Builders & Maintainers of Bone Up Trail

Bone Up Details

  • Riding area
  • Difficulty rating
  • Trail type
  • Bike type
    DH, AM, XC, Fat
  • Trail Usage
  • Direction
    Both Directions
  • Climb Difficulty
    Black Diamond
  • Physical rating
  • Season
    Year Round
  • eBike Allowed
  • TTFs on trail
    Rock Face, Rock Garden
  • Global Ranking

This trail is a fun overall intermediate difficulty with a short technical rock garden that is more difficult. The trail winds easily thru a rocky zone. The lower 3/4 of this trail provide an out and back for most people that park on FS-173. Near the half way mark the trail crosses a cattle guard and FS-173. The trail intersects and crosses the Bone Collector about 3/4 of the way up. Bone Up provides a nice cardio work out going out and an exciting downhill coming back. It is possible to shuttle this trail. An exciting shorter loop is to ride Bone Up into Bone Collector then finish on South of Heaven.

Access Info

Drive west from Rapid City on SD-44 for about seven miles then make a right onto Log Porch Rd/FS-173 (just before Thunderhead Falls Rd.). Drive north on FS-173 until you pass the second set of homes/cabins. A short distance past these homes is a small parking area on the east/right side of the road, park here. Please drive slowly past the homes along this road. The trail starts in the northeast corner of this parking area.

This trail is Unsanctioned, Ride at your own Risk!

More Stats for Bone Up mountain bike trail
  • Altitude change
    492 ft
  • Altitude min
    4,278 ft
  • Altitude max
    4,790 ft
  • Altitude start
    4,278 ft
  • Altitude end
    4,770 ft
  • Grade
  • Grade max
  • Grade min
  • Distance climb
    1 miles
  • Distance down
    1,909 ft
  • Distance flat
    1,427 ft
  • Avg time
  • view trail stats
on Jul 29, 2018
Avg: 5 (2 votes)

view (55)
Layers winter
Trail Style
  • ?
Trail Conditions
  • Unknown
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Dry
  • Very Dry
Directions to bone-up-114859 trailhead (44.071120, -103.413630)
update trails status or condition

Bone Up Trail Reports

Jul 29, 2018 @ 8:38am
Jul 29, 2018
Slightly damp from recent rain.
view all reports »


more »
25 |
Jan 11, 2018 @ 12:02pm
Jan 11, 2018
Bone Up, Rapid City
19 |
Jan 11, 2018 @ 12:02pm
Jan 11, 2018
Bone Up, Rapid City
17 |
Jan 11, 2018 @ 12:02pm
Jan 11, 2018
Bone Up, Rapid City
15 |
Jan 11, 2018 @ 12:02pm
Jan 11, 2018
Bone Up, Rapid City

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