1.8 miles
Distance
240 ft
Climb
-1,267 ft
Descent
00:30:17
Avg time

The Grudge Details

  • Activities
    • Mountain Bike
    • E-Bike
    • Hike
    • Trail Running
  • Riding Area
    Rocky Peak Park
    Simi Valley, California
  • Difficulty Rating
    Black Diamond rate
  • Voted Difficulty
    Black Diamond (8 votes)
  • Hiking SAC Scale
    T3 Demanding Mountain Hiking
  • Trail Type
    Singletrack
  • Bike Type
    DH, AM
  • Direction
    Downhill Primary
    Popular direction shown
  • Physical Rating
    Hard
  • Dogs Allowed
    Yes
  • eBike Allowed
    Yes up to Class 1
  • TTFs on Trail
    Drop, Rock Face, Rock Garden
  • Global Ranking
    #8224 in Mountain Biking [+]
    • #1943 in E-Biking
    • #58276 in Trail Running
    • #22133 in Hiking
  • Local Popularity
    100 in Mountain Biking [+]
    • 100 in E-Biking
    • 90 in Trail Running
    • 85 in Hiking

One of the best all-mountain MTB trails in SoCal. Fast, flowy with everything thrown at you.

Traditionally Indigenous Territory
More Stats for The Grudge mountain bike trail trail
  • Altitude change
    -1,027 ft
  • Altitude min
    1,077 ft
  • Altitude max
    2,249 ft
  • Altitude start
    2,105 ft
  • Altitude end
    1,076 ft
  • Grade
    -11%
  • Grade max
    -72.6%
  • Grade min
    32.5%
  • Distance climb
    2,493 ft
  • Distance down
    1 mile
  • Distance flat
    331 ft
  • Avg time
    00:30:17
  • Avg reverse time
    01:12:17
  • view trail stats
Status:
on Dec 23, 2024
Dry
Avg: 4.45 (27 votes)
Your vote: 0

view (4,066)
close
  • BasemapMap 
    • Pro
    • Pro
    • Pro
    • Pro
    • Pro
    • Pro
    • Pro
    • Pro
3D
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)
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%
  • bi-directional trail
  • no data
Trail Last Ridden
Trailforks scans ridelogs to determine the last time a trail was ridden.
  • < 2 days
  • < 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
Colors indicate trail is missing specified detail.
  • Description
  • Photos
  • Description & Photos
  • Videos
Trail Popularity ?
Trailforks scans ridelogs to determine which trails are ridden the most in the last 9 months. Trails are compared with nearby trails in the same city region with a possible 25 colour shades. Think of this as a heatmap, more rides = more kinetic energy = warmer colors.
  • most popular
  • popular
  • less popular
  • not popular
ATV/ORV/OHV Filter
Max Vehicle Width
inches
US Cell Coverage
Legend
cell carrier legend

Radar Time
x Activity Recordings
Trailforks users anonymized public ridelogs from the past 6 months.
  • mountain biking recent
  • mountain biking (>6 month)
  • hiking (1 year)
  • moto (1 year)
Activity Recordings
Trailforks users anonymized public skilogs from the past 12 months.
  • Downhill Ski
  • Backcountry Ski
  • Nordic Ski
  • Snowmobile
Winter Trails
Warning A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
x Missing Trails
Most Popular
Least Popular
Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
Jump Magnitude Heatmap
Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
Trails Deemphasized
Trails are shown in grey.
disable
Only show trails with NO bikes.
enable

Save the current map location and zoom level as your default home location whenever this page is loaded.

Save
      Directions to the-grudge-63700 trailhead (34.276250, -118.638740)
      update trails status or condition

      The Grudge Trail Reports

      statusdatedescription
      Dec 23, 2024 @ 3:16pm
      Dec 23, 2024
      Jun 4, 2024 @ 2:26pm
      Jun 4, 2024
      		 Great shape
      Jun 1, 2024 @ 1:16pm
      Jun 1, 2024
      		 Absolutely perfect dirt. Thanks to the crew who put in a lot of work, it’s running as good as it ever has.
      May 24, 2024 @ 9:06am
      May 24, 2024
      May 19, 2024 @ 5:57am
      May 19, 2024
      		 Running good, some small wet sections at the beginning but lower section remains nice and fast.
      view all reports »

      Recent Ridelog Activity on Trail

      Past Week
      • 1 rides
      • 18 miles avg distance
      6 Months
      • 26 rides
      • 12 miles avg distance
      All
      • 267 rides
      • Last: Jan 19, 2025

      Photos

      more »
      82 |
      Jan 6, 2024 @ 10:39am
      Jan 6, 2024
      95 |
      Dec 26, 2023 @ 9:55am
      Dec 26, 2023
      200 |
      Mar 13, 2022 @ 8:19pm
      Mar 13, 2022
      202 |
      Mar 13, 2022 @ 8:19pm
      Mar 13, 2022

      Routes with this trail

      titledistance
      Rocky peak enduro sampler13 miles
      Chumash-RockyPeak-Undertow10 miles
      Rocky Peak to Undertow3 miles

      33 Reviews & Comments


      We hope you've been enjoying Trailforks!

      Create a FREE account to view trail comments and much more.

      Create a Free Account

      Videos

      more »
      youtuber It RAMPED UP 'til I CRACKED | Simi Valley, Los...
      16:48 | 1459 | Apr 18, 2019 , Simi Valley
      Simi MTB - The Grudge @Rocky Peak
      4:13 | 62 | Jun 24, 2024 , Simi Valley
      Simi MTB - The Grudge @Rocky Peak (My First Time)
      6:55 | 39 | Jun 9, 2024 , Simi Valley
      youtuber Grudge Revenge
      16:12 | 139 | Apr 11, 2023 , Simi Valley

      Nearby Trails

      Rocky Peak Park

      • By mtbjukyTF Pro & contributors
      • #63700 - 26,423 views

      You must enter a description before submitting.