542 ft
Distance
15 ft
Climb
-35 ft
Descent
00:00:32
Avg time

Details

  • Riding Area
    Griffin Bike Park
    Terre Haute, Indiana
  • Difficulty Rating
  • Voted Difficulty
    Black Diamond (1 vote)
  • Trail Type
    Singletrack
  • Bike Type
    XC, Fat
  • Trail Usage
    Biking Only
  • Direction
    Both Directions
  • Climb Difficulty
    Black Diamond
  • Physical Rating
    Hard
  • TTFs on Trail
    Berm, Drop
  • Global Ranking
    #12784 in Mountain Biking
  • Year Opened
    2017
  • Land Manager
    Vigo County Department of Parks and Recreation

From the Alpha Trail riders pass under a wooden gantry and make a winding gentle climb to the first (advanced) drop. This steep descent is made even more challenging by loose, sandy soil. At the bottom, those with momentum can ride a berm curving to the right and then continue to the right to re-enter Alpha Trail.

Access Info

This steep drop is accessed from Alpha Trail. Look for the wooden gantry where Alpha makes a turn and descent to the right.

Local Trail Association
More Stats for Proving Grounds Advanced Drop bike trail
  • Altitude change
    -21 ft
  • Altitude min
    632 ft
  • Altitude max
    657 ft
  • Altitude start
    654 ft
  • Altitude end
    632 ft
  • Grade
    -3.944%
  • Grade max
    -26.643%
  • Grade min
    11.563%
  • Distance climb
    198 ft
  • Distance down
    240 ft
  • Distance flat
    103 ft
  • Avg time
    00:00:32
  • Avg reverse time
    00:03:04
  • view trail stats
Status:
on Dec 14, 2018
Prevalent Mud
Avg: 4.75 (4 votes)

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Trail Conditions
  • Unknown
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Dry
  • Very Dry
Trail Ridden Direction

Trailforks scans users ridelogs to determine the most popular direction each trail is ridden. A good flowing trail network will have most trails flowing in a single direction according to their intension.
The colour categories are based on what percentage of riders are riding a trail in its intended direction.

  • > 96%
  • > 90%
  • > 80%
  • > 70%
  • > 50%
  • < 50%
Trail Ridden Direction

The intendid direction a trail should be ridden.

  • Downhill Only
  • Downhill Primary
  • Both Directions
  • Uphill Primary
  • Uphill Only
  • One Direction

LEGEND
Trail Difficulties
  • Access Road/Trail
  • White
  • Green
  • Blue
  • Black
  • Double Black Diamond

Trail Report Status
  • Clear / Green
  • Minor Issue / Yellow
  • Significant Issue / Amber
  • Closed or Major Issue / Red

  • Land Owner Overlay
  • Wilderness (typically no bikes in USA)
  • BLM (public)
  • USFS (Wildlife sanctuaries darker than usfs)
  • State land
  • Indigenous
  • Military
Trail Conditions
  • Unknown
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Dry
  • Very Dry
  • Map Markers
  • trail Trail Head
  • photo Photo
  • place Directory Listing
  • region Riding Area
  • TTF TTF
  • Parking Parking
  • Viewpoint Viewpoint
  • Information Information
  • Warning Warning
  • Directions Directions
  • Water Fountain/Source Water Fountain/Source
  • Sight Sight
  • Restrooms Restrooms
  • Gate Gate
  • Camping Camping
  • Trail Sign Trail Sign
  • Table or Bench Table or Bench
  • Other Other
Directions to proving-grounds-advanced-drop trailhead (39.338720, -87.365200)
update trails status or condition

Proving Grounds... Trail Reports

Photos

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1 Review & Comments

  • + 1
flag klaine (Aug 16, 2016 at 12:01)
 These Drops in the "Proving Grounds" are not fully complete... the ravine bottoms are SOFT. Causeways still need to be built to provide a firm transition into the table top on the other side. The surrounding "Alpha" loop is open, but this section needs some work. Worth taking a look down though to see what is in the works!!
[Reply]

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