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3,617 ft
Distance
150 ft
Climb
-170 ft
Descent
00:06:31
Avg time
-20 ft
Altitude change
289 ft
Altitude min
402 ft
Altitude max
401 ft
Altitude start
381 ft
Altitude end
-0.558%
Grade
-21.534%
Grade max
24.079%
Grade min
1,759 ft
Distance climb
1,703 ft
Distance down
155 ft
Distance flat
00:06:31
Avg time
The Appendix Details
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Activities
- Mountain Bike
- E-Bike
- Winter Fat Bike
- Hike
- Trail Running
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Riding AreaLos Peñasquitos Canyon
San Diego, California -
AKACobbles Appendix, Colostomy
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Difficulty Rating
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Voted DifficultyBlue (3 votes)
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Local Popularity100 in Mountain Biking [+]
- 95 in E-Biking
- 25 in Trail Running
- 80 in Hiking
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Global Ranking
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Trail TypeSingletrack
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Bike TypeAM, XC, Fat
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DirectionBoth Directions
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Dogs AllowedYes
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eBike AllowedYes up to Class 1
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Land OwnerCity of San Diego
Newly built by SDMBA and a good addition to the PQ area. Multiple fast sections with lots of small bumps to catch air off of. Fun in either direction.
ADAPTIVE MTB INFO
Rating aMTB3 - Major Obstacles Exist - Narrow Camber - Support Rider Needed
source: The UNPavement
Access Info
The north trailhead is accessed from Little McGonicle Ranch Road. The south/east trailhead is across Carmel Mountain Road from the Cobbles trail. There is a tunnel under the road for easy access.
Disclaimer
Adaptive MTB - Support Rider Needed
Local Trail Association
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Please consider joining or donating to the local trail association to supportDonate to earn trail karma!
trail development & maintenance.
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 7 rides
- 14 miles average
6 Months
- 283 rides
- 16 miles avg distance
All
- 1,987 rides
- Last: Jul 14, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
The Appendix Trail Reports
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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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The colour categories are based on what percentage of riders are riding a trail in its intended direction.
The colour categories are based on what percentage of riders are riding a trail in its intended direction.
- > 96%
- > 90%
- > 80%
- > 70%
- > 50%
- < 50%
- bi-directional trail
- no data
Trail Last Ridden
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- < 1 week
- < 2 weeks
- < 1 month
- < 6 months
- > 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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Trail Popularity ?
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Trails are compared with nearby trails in the same city region with a possible 25 colour shades.
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Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
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Directions to the-appendix trailhead
(32.939345, -117.182061)
Photos
11 more »
Videos
5 more »
3:55 |
24 |
Feb 5, 2026 , San Diego
15:53 |
37 |
Oct 3, 2025 , San Diego
13:05 |
112 |
Jul 10, 2024 , San Diego
0:17 |
111 |
Jun 10, 2024 , San Diego
Routes with this trail
Oh, The Places You'll Go! Featured
★ 5.0 • 43 miles • 2,953 ft • 18 • Shuttled •
In his wonderful book, , it's doubtful that the beloved Dr. Seuss had mountain bikes in mind when he wrote...
★ 3.5 • 23 miles • 1,957 ft • 61 • Loop •
This route through Los Penasquitos Canyon and Del Mar Mesa hits some of the most popular trails in the...
★ 5.0 • 24 miles • 2,166 ft • 26 • Point to Point •
This is the 2024 Half Archipelago Ridge put on by SDMBA . Check out https://archride.sdmba.com/ for more...
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Nearby Trails
- Cobbles 3 ft
- Boyscout Trail 2,835 ft
- Rancho Toyon Path 2,907 ft
- The Sh!ts 4,055 ft
- Carson's Viewpoint 4,160 ft
Los Peñasquitos Canyon
- By The-dirt-farmer
& contributors - #60133 - 4,411 views
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Frequently Asked Questions About The Appendix
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Where is The Appendix located?
The Appendix is located in Los Peñasquitos Canyon, San Diego, California, United States. It is part of the Los Peñasquitos Canyon trail network. The trailhead is located at coordinates 32.93935, -117.18206.
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How hard is The Appendix?
The Appendix is rated as Blue difficulty. The average grade is 0.558%.
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What is the elevation gain for The Appendix?
The Appendix has 150 ft of elevation gain. The trail has 170 ft of elevation descent. The elevation ranges from 289 ft to 402 ft.
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Is The Appendix a point to point trail?
The Appendix is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
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