more stats
1.2 miles
Distance
-919 ft
Descent
00:07:13
Avg time
-919 ft
Altitude change
1,520 ft
Altitude min
2,438 ft
Altitude max
2,438 ft
Altitude start
1,519 ft
Altitude end
-14.6%
Grade
-30.1%
Grade max
-1.8%
Grade min
1 mile
Distance down
00:07:13
Avg time

Extra Terrestrial Details

  • Activities
    • Mountain Bike
  • Riding Area
    Tiger Mountain State Forest
    Issaquah, Washington
  • Difficulty Rating
    Blue Rate
  • Voted Difficulty
    Blue (8 votes)
  • Local Popularity
    75 in Mountain Biking
  • Global Ranking
    #1165 in Mountain Biking
  • Trail Type
    Singletrack
  • Direction
    Downhill Only
    Popular Direction Shown
  • Dogs Allowed
    Yes
  • eBike Allowed
    No
  • Land Owner
    Washington State DNR

Fast flowy machine built ripper opened summer 2021. Steeper than a typical machine built "flow" trail. This is part of the future trail connect to the town of Preston and exit 22. For now it ends at a logging road. Make a right and take the logging road to the East Side Road, Preston Railroad Trail and Silent Swamp Trail.

Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 13 rides
  • 15 miles average
6 Months
  • 236 rides
  • 16 miles avg distance
All
  • 1,178 rides
  • Last: Sep 12, 2026
c1c2c3c4
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update trails status or condition

Extra Terrestrial Trail Reports

statusdatedescription
Jul 3, 2026 @ 5:33pm (America/Los_Angeles)
Jul 3, 2026
Jun 21, 2026 @ 1:35pm (America/Vancouver)
Jun 21, 2026
 Amazing trail. Loved it. Had a little bit of everything!! Will take the black route next time!!
Apr 20, 2026 @ 10:44am (America/Los_Angeles)
Apr 20, 2026
Mar 24, 2026 @ 7:43am (America/Los_Angeles)
Mar 24, 2026
 reporter Trees cleared as of 3/24. This trail rides great in summer or drier conditions. Please stay on Extraterrestrial and avoid SuperT if actively...
Mar 21, 2026 @ 2:11pm (America/Los_Angeles)
Mar 21, 2026
 Cleared several trees with my hand saw but ran out of steam. Might be missing a couple others, best accessed from road at bottom of ET but that...
more »
Status:
on Jul 3, 2026
Wet
Avg: 4.54 (22 votes)
Your vote: 0

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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.
  • > 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.
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  • less popular
  • not popular
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Missing Trails
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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.
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

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.

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Slope Aspect
Direction the slope faces
Flat N NE E SE S SW W NW
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        Directions to extra-terrestrial trailhead (47.496140, -121.944500)
        View on Discover Map

        Photos

        29 more »
        mtb
        112 |
        May 13, 2023 @ 4:36pm
        May 13, 2023
        mtb
        104 |
        May 13, 2023 @ 4:36pm
        May 13, 2023
        mtb
        126 |
        Nov 16, 2022 @ 1:55pm
        Nov 16, 2022
        mtb
        190 |
        Jun 18, 2022 @ 9:30pm
        Jun 18, 2022

        Videos

        12 more »
        youtuber Hunting for a PR!
        mtb
        4:03 | 226 | Jan 19, 2026 , Issaquah
        youtuber Phone home... EXTRA TERRESTRIAL is out of this...
        mtb
        4:57 | 111 | Jan 30, 2026 , Issaquah
        Extra Terrestrial Trail - Tiger Mountain, WA
        mtb
        147 | Jul 26, 2025 , Issaquah
        youtuber THE BEST DESCENT HERE
        mtb
        10:09 | 182 | Aug 28, 2024 , Issaquah

        Routes with this trail

        973
        Tiger Black Out
        ★ 5.0 • 48 miles • 10,456 ft • 33 • Loop •
        A route that connects all the trails on Tiger (as of May 2026) with great flow, limited repeats, and zero...
        271
        evo Trailgate Tiger Mountain E-Bike Route 2024
        ★ 5.0 • 12 miles • 2,504 ft • 10 • Loop •
        evo Trailgate E-Bike Route 2024
        712
        2025 Tiger
        ★ 4.0 • 25 miles • 5,809 ft • 19 •

        Trail Products

        4.8 ★★★★★
        22 Ratings
        5 ★ 82%
        4 ★ 9%
        3 ★ 9%
        2 ★
        1 ★

        11 Reviews & Comments

        stburke811
        Much steeper than I anticipated. It’s not necessarily a technically difficult trail, I mean it has its bumps and roots, nothing mandatory. It’s more so that it’s easy to go uncomfortably fast on this and it has a fair share of tight switchbacks. Don’t get me wrong, it’s fun, but more for people who like speed over the classic tiger tech. It’s faster than side hustle by far. Your brake pads might get melted
        DavincH2yio
        Literally melt your brake pad steep if you ride fast. Was in great condition due to the unseasonable rain we’ve been having.
        200Meters
        Great trail - lots of fun. Definitely blue, but also not easy blue.

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        Nearby Trails

        Tiger Mountain State Forest

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        Frequently Asked Questions

        ▼ Where is Extra Terrestrial located?
        Extra Terrestrial is located in Tiger Mountain State Forest, Issaquah, Washington, United States. It is part of the Tiger Mountain State Forest trail network. The trailhead is located at coordinates 47.49614, -121.9445.
        ▼ How hard is Extra Terrestrial?
        Extra Terrestrial is rated as Blue difficulty. The average grade is 14.6%.
        ▼ What is the elevation gain for Extra Terrestrial?
        The trail has 919 ft of elevation descent. The elevation ranges from 1,520 ft to 2,438 ft.
        ▼ Is Extra Terrestrial a point to point trail?
        Yes, Extra Terrestrial is a point to point trail. The direction is Downhill Only. The trail type is singletrack.
        ▼ How long is Extra Terrestrial?
        Extra Terrestrial is 1.2 miles long. The trail type is singletrack.
        ▼ Are dogs allowed on Extra Terrestrial?
        Yes, dogs are allowed on Extra Terrestrial. Please keep dogs on a leash where required and clean up after them.
        ▼ How do I access Extra Terrestrial? Where is the closest parking trailhead?
        The closest parking and trailhead locations to Extra Terrestrial are: View all parking locations in the area.
        ▼ How long does it take to ride Extra Terrestrial?
        The estimated time to ride Extra Terrestrial is approximately 7 minutes. The trail is 1.2 miles long. Actual times will vary based on fitness level, conditions, and pace.
        ▼ How busy is Extra Terrestrial?
        Extra Terrestrial is a very popular trail. There have been 6,144 recorded activities on this trail. The trail has received 6,200 check-ins. View recent activity on this trail.

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