more stats
978 ft
Distance
-42 ft
Descent
00:03:05
Avg time
-43 ft
Altitude change
424 ft
Altitude min
466 ft
Altitude max
466 ft
Altitude start
423 ft
Altitude end
-4.4%
Grade
-10.4%
Grade max
-0.5%
Grade min
889 ft
Distance down
89 ft
Distance flat
00:03:05
Avg time

Semper Dirticus Details

  • Activities
    • Mountain Bike
    • E-Bike
  • Riding Area
    Duthie Hill Mountain Bike Park
    Issaquah, Washington
  • AKA
    Dirt Corps
  • Difficulty Rating
  • Voted Difficulty
    Double Black Diamond (10 votes)
  • Local Popularity
    100 in Mountain Biking [+]
    • 100 in E-Biking
  • Global Ranking
    #1655 in Mountain Biking [+]
    • #2825 in E-Biking
  • Trail Exposure
    High Risk
  • Trail Type
    Singletrack
  • Bike Type
    DH, AM, DJ
  • Physical Rating
    Moderate
  • Trail Visibility
    Always easy to follow
  • Dogs Allowed
    Yes
  • eBike Allowed
  • TTFs on Trail
    Berm, Bridge, Drop, Jump, Gap Jump, Wallride, Other
  • Ride in Rain
    Yes

Advanced trail with lots of wooden structures. Features a drop-in platform, various jumps, drops, an on-off box, and a wallride. A true freeride line.

Access Info

Trail entrance (the large wooden drop-in structure) is located at the end of the flow-park walk-up, to the right of the step-up platform.

Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 48 rides
  • 10 miles average
6 Months
  • 673 rides
  • 10 miles avg distance
All
  • 6,266 rides
  • Last: Jun 21, 2026
c1c2c3c4
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Semper Dirticus Trail Reports

statusdatedescription
May 18, 2026 @ 12:35pm (America/Vancouver)
May 18, 2026
May 12, 2026 @ 11:27am (America/Vancouver)
May 12, 2026
Dec 21, 2025 @ 8:59am (America/Los_Angeles)
Dec 21, 2025
Duthie Hill Park - OPEN! Thank you King County Parks & Evergreen Mountain Bike Alliance & Volunteers!
Dec 18, 2025 @ 3:46pm (America/Los_Angeles)
Dec 18, 2025
Trail Update: Duthie Hill Trails remain CLOSED. ETA: Targeting a reopening before Christmas. Thanks Parks & EMBA!
Dec 12, 2025 @ 12:53pm (America/Los_Angeles)
Dec 12, 2025
*** Duthie Hill Park CLOSED *** - Storm Damage
more » 1 social media mentions
Status:
on May 18, 2026
Avg: 4.55 (47 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
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  • > 90%
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  • > 6 months
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  • Downhill Primary
  • Both Directions
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  • Uphill Only
  • One Direction
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Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
BC Backroad Status

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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 semper-dirticus trailhead (47.577190, -121.979790)

        Photos

        202 more »
        689 |
        Jul 15, 2017 @ 12:11am
        Jul 15, 2017
        417 |
        Apr 10, 2017 @ 1:12pm
        Apr 10, 2017
        5,021 |
        May 24, 2010 @ 6:06pm
        May 24, 2010
        2,152 |
        Feb 3, 2012 @ 10:53pm
        Feb 3, 2012

        Videos

        64 more »
        Semper Dirticus - Duthie MTB Park
        0:53 | 351 | May 24, 2025 , Issaquah
        Semper Dirticus  - Duthie Hill Bike Park - ...
        0:36 | 129 | Dec 23, 2024 , Issaquah
        Bike is Life
        0:43 | 158 | Sep 6, 2024 , Issaquah
        top 5 trails at Duthie
        5:45 | 173 | Jun 16, 2024 , Issaquah

        Trail Lists

        1 Review & Comments


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        • By RobinhoodsTF Pro & contributors
        • #17323 - 14,580 views

        Frequently Asked Questions About Semper Dirticus

        Where is Semper Dirticus located?
        Semper Dirticus is located in Duthie Hill Mountain Bike Park, Issaquah, Washington, United States. It is part of the Duthie Hill Mountain Bike Park trail network. The trailhead is located at coordinates 47.57719, -121.97979.
        How hard is Semper Dirticus?
        Semper Dirticus is rated as Double Black Diamond difficulty. The physical rating is Moderate. The average grade is 4.4%.
        What is the elevation gain for Semper Dirticus?
        The trail has 42 ft of elevation descent. The elevation ranges from 424 ft to 466 ft.
        How long is Semper Dirticus?
        Semper Dirticus is 978 ft long. The trail type is singletrack.

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