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1.1 miles
Distance
-857 ft
Descent
1,070 ft
High Point
-860 ft
Altitude change
210 ft
Altitude min
1,070 ft
Altitude start
210 ft
Altitude end
-14.7%
Grade
-60.9%
Grade max
1.8%
Grade min
1 mile
Distance down
262 ft
Distance flat
Sad Birthday Details
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Activities
- Mountain Bike
- E-Bike
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Riding AreaTualatin Mountain Forest (Rocky Point Trails)
Portland, Oregon -
Difficulty Rating
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Voted DifficultyBlack Diamond (4 votes)
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Local Popularity90 in Mountain Biking [+]
- 75 in E-Biking
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Trail TypeSingletrack
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Bike TypeDH, AM
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eBike Allowed
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TTFs on TrailBerm, Drop, Jump, Wallride
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Year Opened2024
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Land OwnerOSU Research Forests
Mostly au naturale, this trail has multiple fast, flowy sections mixed in with some steep bits to keep you on your toes. Some roots are beginning to appear and this one is a good one to learn to use your brakes on. Named sad birthday because of the ridiculous amounts of popped birthday balloons found while building.
Access Info Restricted Access
These trails are not open to the general public. You must be a member of NWTA to access these trails as part of the land use agreement with OSU Research Forests. Please adhere to our land use agreement with OSU Research Forests.
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
- 9 rides
- 12 miles average
6 Months
- 171 rides
- 11 miles avg distance
All
- 511 rides
- Last: Jul 13, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Sad Birthday 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
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Directions to sad-birthday trailhead
(45.684470, -122.908100)
Photos
2 more »
Videos
5 more »
youtuber
![Sad Birthday || Rocky Point, OR]()
8:42 |
178 |
Jul 7, 2025 , Portland
6:25 |
76 |
Aug 8, 2025 , Portland
7:56 |
213 |
Aug 20, 2024 , Portland
10:36 |
90 |
Jul 21, 2024 , Portland
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Nearby Trails
- Access To Sad Birthday 217 ft
- Bob's Yer Uncle (upper) 886 ft
- Bob's Connector 1,043 ft
- Bob's Alternative Entrance 1,129 ft
- Bob's Yer Uncle (mid) 1,870 ft
Tualatin Mountain Forest (Rocky Point Trails)
- By Scooter1
NWTA & contributors - #771513 - 1,067 views
Frequently Asked Questions About Sad Birthday
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Where is Sad Birthday located?
Sad Birthday is located in Tualatin Mountain Forest (Rocky Point Trails), Portland, Oregon, United States. It is part of the Tualatin Mountain Forest (Rocky Point Trails) trail network. The trailhead is located at coordinates 45.68447, -122.9081.
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How hard is Sad Birthday?
Sad Birthday is rated as Black Diamond difficulty. The average grade is 14.7%.
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What is the elevation gain for Sad Birthday?
The trail has 857 ft of elevation descent. The elevation ranges from 210 ft to 1,070 ft.
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How long is Sad Birthday?
Sad Birthday is 1.1 miles long. The trail type is singletrack.
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