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15.3 miles
Distance
1,301 ft
Climb
-1,295 ft
Descent
528 ft
High Point
9 ft
Altitude change
155 ft
Altitude min
196 ft
Altitude start
203 ft
Altitude end
-38.8%
Grade max
31.7%
Grade min
7 miles
Distance climb
7 miles
Distance down
2 miles
Distance flat
Fullerton Loop - Full....
Detailed Description
Fullerton Loop - Full is a 15 mile popular intermediate route located near Fullerton California. This mountain bike only route can be used both directions and has a easy overall physical rating. This route includes 18 trails. This route climbs 1,301 ft with a max elevation of 528 ft then descends -1,295 ft.
Local Trail Association
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Stats
-
Distance15 miles
-
Avg time1 hr 26 min
-
Altitude change9 ft
-
Altitude min155 ft
-
Altitude start196 ft
-
Altitude end203 ft
-
Climb1,301 ft
-
Descent-1,295 ft
-
Grade max-38.8%
-
Grade min31.7%
-
Distance climb7 miles
-
Distance down7 miles
-
Distance flat2 miles
9 Reviews & Comments
JonathanJKZIj4
Slightly confusing but overall fun. Some challenging that def require that granny gear.
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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)
Trailforks scans users activity logs to determine the most popular direction each trail is ridden. A good flowing trail network will have most trails flowing in a single direction according to their intension.
The colour categories are based on what percentage of users are riding a trail in its intended direction.
The colour categories are based on what percentage of users are riding a trail in its intended direction.
- > 96%
- > 90%
- > 80%
- > 70%
- > 50%
- < 50%
- bi-directional trail
- no data
Trail Last Used
Trailforks scans activity logs to determine the last time a trail was ridden.
- < 2 days
- < 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
Contribute Details
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- Photos
- Description & Photos
- Videos
Trail Popularity ?
Trailforks scans activity logs to determine which trails are ridden the most in the last 9 months.
Trails are compared with nearby trails in the same city region with a possible 25 colour shades.
Think of this as a heatmap, more activities = more kinetic energy = warmer colors.
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- popular
- less popular
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Activity Recordings
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Activity Recordings
Trailforks uses anonymized public activity data.
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Winter Trails
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A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
Missing Trails
Most Popular
Least Popular
Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
Jump Magnitude Heatmap
Heatmap of where users jump on trails. Zoom in to see individual jumps, click circles to view jump details.
BC Backroad Status
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Slope Aspect
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Photos
Videos
mtb
Fullerton loop is the best beginner mountain bike trail in Southern California
trail: Castlewood Trail
2:08 | 270 | comments: 0 | favs:
Jun 29, 2025
mtb
Bonita to coronado
trail: Coronado
9:34 | 259 | comments: 1 | favs: 1
Jan 27, 2012
Just another ride with the team. Right around 40 mi. there and back
Recent Trail Reports Along Route
more reports »
- By hernandezr492 & contributors
- #25508 - 18,191 views
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