Open in App
Get this trail on your phone instantly.
more stats
161 ft
Distance
4 ft
Climb
00:02:32
Avg time
5 ft
Altitude change
474 ft
Altitude min
479 ft
Altitude max
474 ft
Altitude start
479 ft
Altitude end
3.1%
Grade
0.7%
Grade max
6.5%
Grade min
98 ft
Distance climb
13 ft
Distance flat
00:02:32
Avg time
Big Tree Extension Details
-
Activities
- Mountain Bike
- E-Bike
-
Riding AreaDuthie Hill Mountain Bike Park
Issaquah, Washington -
Difficulty Rating
-
Local Popularity65 in Mountain Biking [+]
- 65 in E-Biking
-
Trail TypeSingletrack
-
DirectionDownhill Only
-
Physical RatingModerate
-
Dogs AllowedYes
-
eBike Allowed
-
TTFs on TrailBridge, Jump
No community description for Big Tree Extension trail has been added yet!
AI Generated Description
Big Tree Extension is a 161 ft moderately popular black diamond difficulty singletrack trail located near Issaquah Washington. This mountain bike primary trail can be used downhill only and has a moderate overall physical rating. It features bridge and jump. On average it takes 2 minutes to complete this trail.
Local Trail Association
-
-
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
- 1 rides
- 6 miles average
6 Months
- 48 rides
- 9 miles avg distance
All
- 205 rides
- Last: Oct 16, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Big Tree Extension Trail Reports
more »
close
3D
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
Colors indicate trail is missing specified detail.
- Description
- 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.
- most popular
- popular
- less popular
- not popular
ATV/ORV/OHV Filter
Max Vehicle Width
inches
US Cell Coverage
Legend
Radar Time
Activity Recordings
Trailforks uses anonymized public activity data.
?
Activity Recordings
Trailforks uses anonymized public activity data.
?
Winter Trails
Warning
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
![map legend]()
Service Road Atlas is a free to use, community-driven service for viewing and creating reports on the numerous back-country service roads around B.C. and Alberta.
Slope Aspect
Direction the slope faces
Trails Deemphasized
Trails are shown in grey.
Only show trails with no bike usage.
Suggested Layers
Based on selected activity type
Save the current map location and zoom level as your default home location whenever this page is loaded.
Save
Directions to big-tree-extension trailhead
(47.577070, -121.975060)
Photos
No photos have been added for Big Tree Extension yet, add a photo.
Videos
no videos have been added for Big Tree Extension yet, add a video.
Trail Products
JoshipG35Q
The only zway that is available for the game to play on is a
We hope you've been enjoying Trailforks!
Create a FREE account to view all trail reviews and much more.
Nearby Trails
- Gravy Train 26 ft
- G.h.y. Line 72 ft
- Double Trouble 79 ft
- Ryan's Eternal Flow Line 121 ft
- Big Tree (blue Line) 138 ft
Duthie Hill Mountain Bike Park
- By ChrisBan21
Map Team & contributors - #793024 - 461 views
- Follow/Subscribe
- login to download gpx or kml files.
Hit the Trail
Download Trail
Save to wishlist, Garmin & download.
Find Related Routes
Find routes and users activities that include this trail.
You must enter a description before submitting.