more stats
3.2 miles
Distance
688 ft
Climb
-797 ft
Descent
00:50:59
Avg time
-109 ft
Altitude change
919 ft
Altitude min
1,558 ft
Altitude max
1,554 ft
Altitude start
1,447 ft
Altitude end
-0.7%
Grade
-37.4%
Grade max
44.9%
Grade min
1 mile
Distance climb
2 miles
Distance down
1,129 ft
Distance flat
00:50:59
Avg time

Lower Loop Details

  • Activities
    • Mountain Bike
    • E-Bike
    • Hike
    • Trail Running
  • Riding Area
    Pacific Union College Forest
    Angwin, California
  • Difficulty Rating
    Blue Rate
  • Local Popularity
    15 in Mountain Biking [+]
    • 5 in E-Biking
    • 40 in Trail Running
    • 5 in Hiking
  • Global Ranking
    #165930 in Mountain Biking [+]
    • #220785 in E-Biking
    • #152998 in Trail Running
    • #345414 in Hiking
  • State Ranking
    #6,136 in Mountain Biking · California [+]
    • #3,894 in E-Biking
    • #7,952 in Trail Running
    • #14,663 in Hiking
  • Hiking SAC Scale
    T2 Mountain Hiking
  • Trail Type
    Mixed
  • Bike Type
    AM, XC
  • Direction
    Both Directions
  • Climb Difficulty
    Black Diamond
  • Physical Rating
    Hard
  • Trail Visibility
    Sometimes hard to follow
  • Dogs Allowed
    Yes
  • eBike Allowed
    Yes
  • Land Owner
    Pacific Union College

The farthest reaching trail in the Pacific Union College Forest and is not for the faint of heart If you don't have the stamina or mental perseverance, don't attempt. This trail is often overgrown and there are few options to bail out from once the elevation drops, so plan ahead

Tags
Faint trail
Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 0 rides
  •  
6 Months
  • 1 rides
  • 11 miles avg distance
All
  • 21 rides
  • Last: Oct 3, 2026
update trails status or condition

Lower Loop Trail Reports

statusdatedescription
Oct 9, 2025 @ 11:33pm (America/Los_Angeles)
Oct 9, 2025
 Tree down over the creek crossing. Able to walk around/over fallen branches. Watch out for the poison oak near the branches. The sandy ruts...
Aug 6, 2025 @ 12:40pm
Aug 6, 2025
 reporter Trail was cleared with heavy equipment in June 2025. Since then the grass has been growing but the trail should still be decent (lots of ticks though)
Nov 1, 2024 @ 8:40pm
Nov 1, 2024
 This trail is overgrown and not maintained. Sandy downhills with steep uphills with sticks, ruts and branches over trial.
May 31, 2024 @ 8:33am
May 31, 2024
 reporter With some minor brush avoidance, this trail is pretty rideable
Apr 15, 2024 @ 8:01pm
Apr 15, 2024
 Trail is very obstructed and overgrown. Unpleasant to ride
more »
Status:
on Oct 9, 2025
Dry
Avg: 2.84 (8 votes)
Your vote: 0

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      Directions to lower-loop-28857 trailhead (38.588420, -122.426600)
      View on Discover Map

      Photos

      2 more »
      report
      mtb
      72 |
      Nov 1, 2024 @ 8:40pm
      Nov 1, 2024
      report
      mtb
      71 |
      Jan 20, 2023 @ 9:46am
      Jan 20, 2023

      Videos

      1 more »
      youtuber Boundary Trail 2019 (Angwin, CA) Mountian Biking
      mtb
      14:04 | 1212 | May 1, 2019 , Angwin
      1.9 ★★★★★
      8 Ratings
      5 ★ 13%
      4 ★
      3 ★
      2 ★ 38%
      1 ★ 50%

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      Nearby Trails

      Pacific Union College Forest

      • By Spencer_YoungTF Pro PUCF & contributors
      • #28857 - 2,651 views

      Frequently Asked Questions

      ▼ Where is Lower Loop located?
      Lower Loop is located in Pacific Union College Forest, Angwin, California, United States. It is part of the Pacific Union College Forest trail network. The trailhead is located at coordinates 38.58842, -122.4266.
      ▼ How hard is Lower Loop?
      Lower Loop is rated as Blue difficulty. The physical rating is Hard. The average grade is 0.7%. The climb difficulty is rated Black Diamond.
      ▼ What is the elevation gain for Lower Loop?
      Lower Loop has 688 ft of elevation gain. The trail has 797 ft of elevation descent. The elevation ranges from 919 ft to 1,558 ft.
      ▼ Is Lower Loop a point to point trail?
      Lower Loop is not a point to point trail. The direction is Both Directions. The trail type is mixed.
      ▼ How long is Lower Loop?
      Lower Loop is 3.2 miles long. The trail type is mixed.
      ▼ Are dogs allowed on Lower Loop?
      Yes, dogs are allowed on Lower Loop. Please keep dogs on a leash where required and clean up after them.
      ▼ How do I access Lower Loop? Where is the closest parking trailhead?
      The closest parking and trailhead locations to Lower Loop are: View all parking locations in the area.
      ▼ How long does it take to ride Lower Loop?
      Based on recorded activities, it takes an average of 51 minutes to ride Lower Loop. The trail is 3.2 miles long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
      ▼ How busy is Lower Loop?
      Lower Loop is a less popular trail with lighter traffic. There have been 94 recorded activities on this trail. The trail has received 91 check-ins. View recent activity on this trail.

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