more stats
2,129 ft
Distance
41 ft
Climb
00:03:13
Avg time
43 ft
Altitude change
675 ft
Altitude min
718 ft
Altitude max
675 ft
Altitude start
719 ft
Altitude end
2%
Grade
-0.6%
Grade max
11.5%
Grade min
817 ft
Distance climb
1,247 ft
Distance flat
00:03:13
Avg time

Grass Hill (GREEN) Details

  • Activities
    • Mountain Bike
    • Adaptive Bike
    • Winter Fat Bike
    • Horse
    • Hike
    • Trail Running
  • Riding Area
    Palos Forest Preserve
    Willow Springs, Illinois
  • Difficulty Rating
    Green Rate
  • Local Popularity
    85 in Mountain Biking [+]
    • 65 in Trail Running
    • 100 in Hiking
    • 5 in Horseback
  • Global Ranking
    #96509 in Mountain Biking [+]
    • #74230 in Trail Running
    • #24788 in Hiking
  • Trail Type
    Singletrack
  • Bike Type
    AM, XC, Fat, Adaptive MTB
  • Direction
    Both Directions
  • Climb Difficulty
    Blue
  • Physical Rating
    Moderate
  • Trail Visibility
    Always easy to follow
  • Family Friendly
    Yes
  • Dogs Allowed
    Yes
  • eBike Allowed
    No
  • TTFs on Trail
    Berm
  • Land Owner
    Forest Preserve District of Cook County

Grass Hill is an exhilarating descent down a series of berms towards Bullfrog Lake. Please be extra cautious of oncoming traffic as the grass can grow very tall and limit visibility. Call out the blind corners in an effort to reduce the chance of collision.

Adaptive Bike Info
aMTB Green Rating: Beginner features and moderate terrain.
Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 12 rides
  • 15 miles average
6 Months
  • 155 rides
  • 15 miles avg distance
All
  • 1,570 rides
  • Last: Jul 22, 2026
c1c2c3c4
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Status:
on May 20, 2026
Ideal
Avg: 3.86 (2 votes)
Your vote: 0

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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Snow Cover Partial
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
Trail Flow (Ridden Direction)
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  • > 90%
  • > 80%
  • > 70%
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  • < 50%
  • bi-directional trail
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  • < 1 week
  • < 2 weeks
  • < 1 month
  • < 6 months
  • > 6 months
Trail Ridden Direction
The intended direction a trail should be ridden.
  • Downhill Only
  • Downhill Primary
  • Both Directions
  • Uphill Primary
  • Uphill Only
  • One Direction
Contribute Details
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  • Description
  • Photos
  • Description & Photos
  • Videos
Trail Popularity ?
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BC Backroad Status

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Slope Aspect
Direction the slope faces
Flat N NE E SE S SW W NW
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        Directions to grass-hill-green trailhead (41.710820, -87.900280)

        Photos

        2 more »
        117 |
        Oct 13, 2021 @ 7:56am
        Oct 13, 2021
        703 |
        Jun 13, 2014 @ 9:11pm
        Jun 13, 2014

        Videos

        1 more »
        youtuber Grass Hill, Downhill | Palos Mountain Bike Trails
        0:01 | 353 | Jul 16, 2020 , Willow Springs

        Technical Trail Features (TTF)

        Routes with this trail

        110
        Do it all 15 miler
        15 miles • 1,215 ft • 11 • Loop •
        This route includes the new and incorporates all of the favorite routes.
        79
        Palos Outer Loop
        14 miles • 1,152 ft • 13 • Loop •
        An outer Palos loop omitting Stonehouse
        41
        Just Like Old Times
        20 miles • 1,234 ft • 17 •
        This is going to be just like old times.

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        Frequently Asked Questions About Grass Hill (GREEN)

        ▼ Where is Grass Hill (GREEN) located?
        Grass Hill (GREEN) is located in Palos Forest Preserve, Willow Springs, Illinois, United States. It is part of the Palos Forest Preserve trail network. The trailhead is located at coordinates 41.71082, -87.90028.
        ▼ How hard is Grass Hill (GREEN)?
        Grass Hill (GREEN) is rated as Green difficulty. The physical rating is Moderate. The average grade is 2%. The climb difficulty is rated Blue.
        ▼ What is the elevation gain for Grass Hill (GREEN)?
        Grass Hill (GREEN) has 41 ft of elevation gain. The elevation ranges from 675 ft to 718 ft.
        ▼ Is Grass Hill (GREEN) a point to point trail?
        Grass Hill (GREEN) is not a point to point trail. The direction is Both Directions. The trail type is singletrack.

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