more stats
1,696 ft
Distance
34 ft
Climb
-196 ft
Descent
00:06:54
Avg time
-162 ft
Altitude change
77 ft
Altitude min
263 ft
Altitude max
239 ft
Altitude start
75 ft
Altitude end
-9.6%
Grade
-49.8%
Grade max
15.9%
Grade min
315 ft
Distance climb
1,250 ft
Distance down
128 ft
Distance flat
00:06:54
Avg time

Old Growth Loop Details

  • Activities
    • Hike
    • Trail Running
  • Riding Area
    Nisene Marks State Park
    Aptos, California
  • Difficulty Rating
    Blue Rate
  • Local Popularity
    95 in Hiking [+]
    • 85 in Trail Running
  • Global Ranking
    #11433 in Hiking [+]
    • #19922 in Trail Running
  • State Ranking
    #551 in Hiking · California [+]
    • #1,028 in Trail Running
  • Hiking SAC Scale
    T1 Hiking
  • Trail Type
    Singletrack
  • Climb Difficulty
    Blue
  • Physical Rating
    Moderate
  • Trail Visibility
    Sometimes hard to follow
  • Dogs Allowed
    Yes
  • eBike Allowed
    No

Old Growth takes you out to the Advocate Tree spur. It can be very tight and it's a slow ride.

Tags
Faint trailOld-growth forestPicnic spot

Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 4 rides
  • 4 miles average
6 Months
  • 62 rides
  • 3 miles avg distance
All
  • 176 rides
  •  
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Old Growth Loop Trail Reports

statusdatedescription
May 12, 2026 @ 3:39pm (America/Los_Angeles)
May 12, 2026
 NTD project B - ivy removal from terrain - easier work
May 11, 2026 @ 2:21pm (America/Los_Angeles)
May 11, 2026
 NTD project A: - ivy removalfrom redwoods - drag off trail on downhill side (as per SP guidelines)
Apr 27, 2021 @ 12:18pm
Apr 27, 2021
more »
Status:
on May 12, 2026
no votes yet
Your vote: 0

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      Directions to old-growth-loop trailhead (36.988030, -121.910560)
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      Nearby Trails

      Nisene Marks State Park

      • By aguynamedjoeTF Pro & contributors
      • #409355 - 1,050 views

      Frequently Asked Questions

      ▼ Where is Old Growth Loop located?
      Old Growth Loop is located in Nisene Marks State Park, Aptos, California, United States. It is part of the Nisene Marks State Park trail network. The trailhead is located at coordinates 36.98803, -121.91056.
      ▼ How hard is Old Growth Loop?
      Old Growth Loop is rated as Blue difficulty. The physical rating is Moderate. The average grade is 9.6%. The climb difficulty is rated Blue.
      ▼ What is the elevation gain for Old Growth Loop?
      Old Growth Loop has 34 ft of elevation gain. The trail has 196 ft of elevation descent. The elevation ranges from 77 ft to 263 ft.
      ▼ How long is Old Growth Loop?
      Old Growth Loop is 1,696 ft long. The trail type is singletrack.
      ▼ Are dogs allowed on Old Growth Loop?
      Yes, dogs are allowed on Old Growth Loop. Please keep dogs on a leash where required and clean up after them.
      ▼ When is the best time of year to hike Old Growth Loop?
      Based on activity log data, the most popular months to hike Old Growth Loop are:
      • September (32 activities)
      • July (26 activities)
      • August (26 activities)
      Check the reports page for current trail conditions.
      ▼ How do I access Old Growth Loop? Where is the closest parking trailhead?
      The closest parking and trailhead locations to Old Growth Loop are: View all parking locations in the area.
      ▼ How long does it take to hike Old Growth Loop?
      Based on recorded activities, it takes an average of 12 minutes to hike Old Growth Loop. The trail is 1,696 ft long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
      ▼ How busy is Old Growth Loop?
      Old Growth Loop is a very popular trail. There have been 480 recorded activities on this trail. The trail has received 511 check-ins. View recent activity on this trail.

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