more stats
1,965 ft
Distance
39 ft
Climb
-15 ft
Descent
00:03:24
Avg time
26 ft
Altitude change
867 ft
Altitude min
902 ft
Altitude max
876 ft
Altitude start
902 ft
Altitude end
1.3%
Grade
-11.7%
Grade max
11.7%
Grade min
715 ft
Distance climb
331 ft
Distance down
869 ft
Distance flat
00:03:24
Avg time

ARC I Details

  • Activities
    • Mountain Bike
    • Hike
    • Trail Running
  • Riding Area
    O'Neill Regional Park
    Mission Viejo, California
  • Difficulty Rating
    Green Rate
  • Local Popularity
    80 in Mountain Biking [+]
    • 90 in Trail Running
    • 85 in Hiking
  • Global Ranking
    #196309 in Mountain Biking [+]
    • #108599 in Trail Running
    • #105988 in Hiking
  • State Ranking
    #6,714 in Mountain Biking · California [+]
    • #5,294 in Trail Running
    • #5,877 in Hiking
  • Hiking SAC Scale
    T1 Hiking
  • Trail Type
    Singletrack
  • Bike Type
    AM, XC
  • Direction
    Both Directions
  • Climb Difficulty
    Blue
  • Physical Rating
    Easy
  • Trail Visibility
    Always easy to follow
  • eBike Allowed
    No
  • TTFs on Trail
    Ladder Bridge

No community description for ARC I trail has been added yet!

AI Generated Description

ARC I is a 1,965 ft popular green difficulty singletrack trail located near Mission Viejo California. It has skinnies. This mountain bike primary trail can be used both directions and has a easy overall physical rating with a 39 ft blue climb. It features ladder bridge. Trail visibility is always easy to follow. On average it takes 3 minutes to complete this trail.

Tags
Skinnies

Local Trail Association

Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 0 rides
  •  
6 Months
  • 29 rides
  • 17 miles avg distance
All
  • 156 rides
  • Last: Oct 27, 2026
c1c2c3c4
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ARC I Trail Reports

statusdatedescription
Jun 7, 2025 @ 9:12am
Jun 7, 2025
 It's prickly pear season
Dec 29, 2024 @ 10:55am
Dec 29, 2024
Jul 30, 2024 @ 2:31am
Jul 30, 2024
 Where did the wooden bridge go? It will be a mess once we get some rain
Jun 10, 2024 @ 6:16am
Jun 10, 2024
 Getting overgrown. A few thorny spots and Poison Oak is a concern
Jan 13, 2024 @ 12:04am
Jan 13, 2024
 Riding great right now
more »
Status:
on Jun 7, 2025
Dry
no votes yet
Your vote: 0

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      Directions to arc-i trailhead (33.627090, -117.598300)
      View on Discover Map

      Photos

      No photos have been added for ARC I yet, add a photo.

      Videos

      2 more »
      youtuber MTB Riding The Jungle A.K.A. ARC I, Tijeras...
      mtb
      4:06 | 175 | Nov 14, 2023 , Mission Viejo
      MTB Riding Tijeras Creek | Jan Takes Me For A...
      mtb
      23:09 | 87 | Aug 2, 2022 , Mission Viejo

      Reviews / Comments

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      Nearby Trails

      O'Neill Regional Park

      • By mtb949 & contributors
      • #556726 - 639 views

      Frequently Asked Questions

      ▼ Where is ARC I located?
      ARC I is located in O'Neill Regional Park, Mission Viejo, California, United States. It is part of the O'Neill Regional Park trail network. The trailhead is located at coordinates 33.62709, -117.5983.
      ▼ How hard is ARC I?
      ARC I is rated as Green difficulty. The physical rating is Easy. The average grade is 1.3%. The climb difficulty is rated Blue.
      ▼ What is the elevation gain for ARC I?
      ARC I has 39 ft of elevation gain. The trail has 15 ft of elevation descent. The elevation ranges from 867 ft to 902 ft.
      ▼ Is ARC I a point to point trail?
      ARC I is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
      ▼ How long is ARC I?
      ARC I is 1,965 ft long. The trail type is singletrack.
      ▼ Are dogs allowed on ARC I?
      There is no information about dogs being allowed on ARC I. Check with local trail managers or the trail page for the latest access rules.
      ▼ When is the best time of year to ride ARC I?
      Based on activity log data, the most popular months to ride ARC I are:
      • November (18 activities)
      • June (13 activities)
      • July (13 activities)
      Check the reports page for current trail conditions.
      ▼ How do I access ARC I? Where is the closest parking trailhead?
      The closest parking and trailhead locations to ARC I are: View all parking locations in the area.
      ▼ How long does it take to ride ARC I?
      Based on recorded activities, it takes an average of 3 minutes to ride ARC I. The trail is 1,965 ft long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
      ▼ How busy is ARC I?
      ARC I is a very popular trail. There have been 1,500 recorded activities on this trail. The trail has received 1,677 check-ins. View recent activity on this trail.

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