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Sunday Trail Run: Mount Si

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Sunday Trail Run: Mount Si

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Time for an old classic! Sunday away run is returning to Mount Si. Get ready to look at some waterfalls! Maybe scramble a bit! Cool views!

This is a 10-mile loop with a shortcut option for a 6-mile waterfall-only loop.

King County Metro runs the Trailhead Direct service from downtown Seattle to the trailhead, so this is easily accessible without a car. If you do drive, a Discover Pass is required to park at the trailhead. If you'd like to carpool, post in the chat! I will gladly give a lift back to anyone who took the bus up.

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Sunday Trail Runs are a TWICE monthly series. We run at home (Discovery Park / Seven Hills Running Shop on 1st Sundays) and away (rotating series of scenic trails on 3rd Sundays)!

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Seattle Green Lake Running Group
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Every 3rd Sunday of the month until January 19, 2026

Mount Teneriffe Trailhead
47122 SE Mt Si Rd · North Bend, WA
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