more stats
1.9 miles
Distance
162 ft
Climb
-164 ft
Descent
00:17:37
Avg time
-1 ft
Altitude change
809 ft
Altitude min
941 ft
Altitude max
933 ft
Altitude start
932 ft
Altitude end
-0%
Grade
-10.1%
Grade max
23.3%
Grade min
3,041 ft
Distance climb
3,284 ft
Distance down
3,648 ft
Distance flat
00:17:37
Avg time

Hydro Loop Details

  • Activities
    • Mountain Bike
    • E-Bike
    • Hike
    • Trail Running
  • Riding Area
    Allegrippis Trails
    Hesston, Pennsylvania
  • Difficulty Rating
  • Voted Difficulty
    Blue (6 votes)
  • Local Popularity
    90 in Mountain Biking [+]
    • 95 in E-Biking
    • 80 in Trail Running
    • 60 in Hiking
  • Global Ranking
    #14173 in Mountain Biking [+]
    • #86631 in E-Biking
    • #100147 in Trail Running
    • #129172 in Hiking
  • State Ranking
    #136 in Mountain Biking · Pennsylvania [+]
    • #305 in E-Biking
    • #1,507 in Trail Running
    • #2,361 in Hiking
  • Trail Type
    Singletrack
  • Bike Type
    AM, XC
  • Direction
    Downhill Primary
  • Climb Difficulty
    Blue
  • Physical Rating
    Moderate
  • Trail Visibility
    Always easy to follow
  • Dogs Allowed
    Yes
  • eBike Allowed
  • Land Owner
    USACE - Baltimore District

This trail has been voted one of the best public flow trails in the US. Fast and flowy singletrack packed with rollers, and spectacular scenery. Much more fun when ridden counter-clockwise.

Tags
FlowyRollersViews
Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 20 rides
  • 20 miles average
6 Months
  • 284 rides
  • 17 miles avg distance
All
  • 1,479 rides
  • Last: Oct 10, 2026
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Hydro Loop Trail Reports

Status:
on Oct 1, 2026
Avg: 4.52 (34 votes)
Your vote: 0

view (7,402)
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      Directions to hydro-loop trailhead (40.405040, -78.038920)

      Photos

      51 more »
      mtb
      139 |
      Nov 14, 2025 @ 2:44pm
      Nov 14, 2025
      mtb
      119 |
      Nov 14, 2025 @ 2:44pm
      Nov 14, 2025
      mtb
      92 |
      Nov 14, 2025 @ 2:44pm
      Nov 14, 2025
      mtb
      134 |
      Jul 6, 2024 @ 4:10pm
      Jul 6, 2024

      Videos

      2 more »
      Hydro Loop - Allegrippis Trails | Huntingdon, PA
      mtb
      704 | Sep 10, 2021 , Hesston
      Allegrippis Trails - Hydroloop CCW 5June21
      mtb
      10:34 | 619 | Jun 9, 2021 , Hesston

      Routes with this trail

      Go For A Dip Featured
      ★ 5.0 • 9 miles • 793 ft • 6 • Loop •
      A classic loop on a hot day where you want to stop at the Hydro Swim Spot, lake lookout, and go for a...
      ★ 5.0 • 23 miles • 1,875 ft • 16 •
      This is a point-to-point route, so either park a car at the beach for the end or be prepared to climb back...
      ★ 5.0 • 13 miles • 1,245 ft • 8 •
      This route brings you through some of the greatest hits of Allegrippis, like Osprey and Hydro Loop, and...
      4.6 ★★★★★
      34 Ratings
      5 ★ 74%
      4 ★ 18%
      3 ★ 6%
      2 ★ 3%
      1 ★

      11 Reviews & Comments

      tonetonitony
      Twisty flow from the IMBA gods. Def not Black... light blue like everything else here at raystown. Speed is the only thing that gets you into trouble here. 65% of hydro is a slight decline with a small amount of work back to trail intersection. Excellent trail to take a dip in the lake!
      LeBigProd LeBigProd
      Still a bunch of trees blocking the trail right at the start—can’t get past them. Had to turn back. Too bad… it was a fun ride up to that point.
      Pssva058
      Tree down, fallen longways on the trail in a spot that didn’t leave a good option to walk around it.. ended up just heading back the way I came. That said, this is the best trail in the system for fun / flow.

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      Nearby Trails

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      Frequently Asked Questions

      ▼ Where is Hydro Loop located?
      Hydro Loop is located in Allegrippis Trails, Hesston, Pennsylvania, United States. It is part of the Allegrippis Trails trail network. The trailhead is located at coordinates 40.40504, -78.03892.
      ▼ How hard is Hydro Loop?
      Hydro Loop is rated as Black Diamond difficulty. The physical rating is Moderate. The climb difficulty is rated Blue.
      ▼ What is the elevation gain for Hydro Loop?
      Hydro Loop has 162 ft of elevation gain. The trail has 164 ft of elevation descent. The elevation ranges from 809 ft to 941 ft.
      ▼ Is Hydro Loop a point to point trail?
      Hydro Loop is not a point to point trail. The direction is Downhill Primary. The trail type is singletrack.
      ▼ How long is Hydro Loop?
      Hydro Loop is 1.9 miles long. The trail type is singletrack.
      ▼ Are dogs allowed on Hydro Loop?
      Yes, dogs are allowed on Hydro Loop. Please keep dogs on a leash where required and clean up after them.
      ▼ How do I access Hydro Loop? Where is the closest parking trailhead?
      The closest parking and trailhead locations to Hydro Loop are: View all parking locations in the area.
      ▼ How long does it take to ride Hydro Loop?
      Based on recorded activities, it takes an average of 18 minutes to ride Hydro Loop. The trail is 1.9 miles long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
      ▼ How busy is Hydro Loop?
      Hydro Loop is a very popular trail. There have been 6,348 recorded activities on this trail. The trail has received 7,402 check-ins. View recent activity on this trail.

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