more stats
2,562 ft
Distance
4 ft
Climb
-221 ft
Descent
00:03:46
Avg time
-215 ft
Altitude change
635 ft
Altitude min
858 ft
Altitude max
858 ft
Altitude start
643 ft
Altitude end
-8.4%
Grade
-44.7%
Grade max
4.8%
Grade min
364 ft
Distance climb
2,198 ft
Distance down
00:03:46
Avg time

Rd 521 Details

  • Activities
    • Mountain Bike
    • E-Bike
    • Hike
    • Trail Running
  • Riding Area
    Jackson Demonstration State Forest
    Mendocino, California
  • Difficulty Rating
    Green Rate
  • Local Popularity
    80 in Mountain Biking [+]
    • 90 in E-Biking
    • 5 in Trail Running
    • 5 in Hiking
  • Global Ranking
    #218903 in Mountain Biking [+]
    • #107794 in E-Biking
    • #434866 in Trail Running
    • #437766 in Hiking
  • State Ranking
    #7,267 in Mountain Biking · California [+]
    • #2,293 in E-Biking
    • #15,984 in Trail Running
    • #15,983 in Hiking
  • Trail Type
    Doubletrack
  • Direction
    Both Directions
    Popular In Reverse
  • Trail Visibility
    Always easy to follow
  • Dogs Allowed
    Yes
  • Land Owner
    Jackson Demonstration State Forest
  • OSM Way
    #1060364280

No community description for Rd 521 trail has been added yet!

AI Generated Description

Rd 521 is a 2,562 ft popular green difficulty doubletrack trail located near Mendocino California. This multi-use trail can be used both directions. Trail visibility is always easy to follow. On average it takes 3 minutes to complete this trail.

Tags

Local Trail Association

Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 1 rides
  • 15 miles average
6 Months
  • 19 rides
  • 22 miles avg distance
All
  • 57 rides
  • Last: Oct 25, 2026
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Rd 521 Trail Reports

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      Directions to rd-521 trailhead (39.359640, -123.742870)
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      Routes with this trail

      54
      Mendo Saturday route correct version
      30 miles • 4,235 ft • 13 •
      Up forest, up cook house down OT, up Parallel action, top of gas tank, down nitro, up through Jiro's...

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      Nearby Trails

      Jackson Demonstration State Forest

      • By trafficfurnitur MCC & contributors
      • #607675 - 375 views
      This trails GPS track was originally sourced from OpenStreetMap and will always be available for download in OSM Format.

      Frequently Asked Questions

      ▼ Where is Rd 521 located?
      Rd 521 is located in Jackson Demonstration State Forest, Mendocino, California, United States. It is part of the Jackson Demonstration State Forest trail network. The trailhead is located at coordinates 39.35964, -123.74287.
      ▼ How hard is Rd 521?
      Rd 521 is rated as Green difficulty. The average grade is 8.4%.
      ▼ What is the elevation gain for Rd 521?
      Rd 521 has 4 ft of elevation gain. The trail has 221 ft of elevation descent. The elevation ranges from 635 ft to 858 ft.
      ▼ Is Rd 521 a point to point trail?
      Rd 521 is not a point to point trail. The direction is Both Directions. The trail type is doubletrack.
      ▼ How long is Rd 521?
      Rd 521 is 2,562 ft long. The trail type is doubletrack.
      ▼ Are dogs allowed on Rd 521?
      Yes, dogs are allowed on Rd 521. Please keep dogs on a leash where required and clean up after them.
      ▼ How do I access Rd 521? Where is the closest parking trailhead?
      The closest parking and trailhead locations to Rd 521 are: View all parking locations in the area.
      ▼ How long does it take to ride Rd 521?
      Based on recorded activities, it takes an average of 4 minutes to ride Rd 521. The trail is 2,562 ft long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
      ▼ How busy is Rd 521?
      Rd 521 is a very popular trail. There have been 142 recorded activities on this trail. The trail has received 155 check-ins. View recent activity on this trail.

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