more stats
1,965 ft
Distance
39 ft
Climb
-15 ft
Descent
00:04:02
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
00:04:02
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
    • 75 in Hiking
  • Global Ranking
    #177704 in Mountain Biking [+]
    • #59029 in Trail Running
    • #67968 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. 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 4 minutes to complete this trail.

Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 0 rides
  •  
6 Months
  • 25 rides
  • 16 miles avg distance
All
  • 146 rides
  • Last: Sep 7, 2026
update trails status or condition

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
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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%
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  • < 2 days
  • < 1 week
  • < 2 weeks
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  • > 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
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  • Videos
Trail Popularity ?
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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 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 | 164 | Nov 14, 2023 , Mission Viejo
        MTB Riding Tijeras Creek | Jan Takes Me For A...
        mtb
        23:09 | 83 | Aug 2, 2022 , Mission Viejo

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        Nearby Trails

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        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.
        ▼ 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?
        The estimated time to ride ARC I is approximately 4 minutes. The trail is 1,965 ft long. Actual times will vary based on fitness level, conditions, and pace.
        ▼ How busy is ARC I?
        ARC I is a very popular trail. There have been 1,470 recorded activities on this trail. The trail has received 1,645 check-ins. View recent activity on this trail.

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