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1,444 ft
Distance
00:01:53
Avg time
-1 ft
Altitude change
494 ft
Altitude min
496 ft
Altitude max
495 ft
Altitude start
495 ft
Altitude end
-0.1%
Grade
-1.6%
Grade max
0.8%
Grade min
177 ft
Distance climb
354 ft
Distance down
915 ft
Distance flat
00:01:53
Avg time
Upper Middle Jam Details
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Activities
- Mountain Bike
- Winter Fat Bike
- Hike
- Trail Running
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Riding AreaOtay Reservoir
Chula Vista, California -
Difficulty Rating
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Local Popularity100 in Mountain Biking [+]
- 95 in Trail Running
- 5 in Hiking
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Global Ranking
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Hiking SAC ScaleT1 Hiking
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Trail TypeSingletrack
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Bike TypeAM, XC, Fat
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DirectionBoth Directions
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Climb DifficultyGreen
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Physical RatingEasy
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Dogs AllowedYes
This trail is an alternate route in the network of primitive trails along the western side of the Lower Otay Lake. It is neatly tucked between an even higher trail and the Lower Otay Lake Trail. It may be a dry route during seasons when the trails closer to the water may be submerged. It is frequented by cyclists, runners and families. It can be ridden in either direction.
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
- 2 rides
- 30 miles average
6 Months
- 43 rides
- 18 miles avg distance
All
- 212 rides
- Last: Jun 27, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Upper Middle Jam 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.
- > 96%
- > 90%
- > 80%
- > 70%
- > 50%
- < 50%
- bi-directional trail
- no data
Trail Last Ridden
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- < 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
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Trail Popularity ?
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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 upper-middle-jam trailhead
(32.633570, -116.934480)
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Nearby Trails
- Highrider 348 ft
- Centennial Trail - Lower Otay 404 ft
- West Route 2,953 ft
- Alex's Cut 3,881 ft
- High Route 4,984 ft
- By BenLow2019
& contributors - #459655 - 315 views
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Frequently Asked Questions About Upper Middle Jam
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Where is Upper Middle Jam located?
Upper Middle Jam is located in Otay Reservoir, Chula Vista, California, United States. It is part of the Otay Reservoir trail network. The trailhead is located at coordinates 32.63357, -116.93448.
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How hard is Upper Middle Jam?
Upper Middle Jam is rated as Green difficulty. The physical rating is Easy. The average grade is 0.1%. The climb difficulty is rated Green.
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Is Upper Middle Jam a point to point trail?
Upper Middle Jam is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
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How long is Upper Middle Jam?
Upper Middle Jam is 1,444 ft long. The trail type is singletrack.
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