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As the name implies, this trail is mainly made up of doubletrack along the Tolt Pipeline.


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Map Key

30.1

Miles

48.4

KM

96%

Runnable

747' 228 m

High

30' 9 m

Low

2,753' 839 m

Up

2,598' 792 m

Down

3%

Avg Grade (2°)

21%

Max Grade (12°)

Dogs Leashed

Features Birding · River/Creek · Views

Runner Notes

The first mile in Blyth Park is quite steep and rocky for bits. You should wear trail shoes or hard soled shoes b/c running w/ my Levitates was a bit slippery and I could feel the rocks.

Description

This trail begins at Blyth Park in Bothell just north of Seattle proper, and ends at the Tolt River bridge east of Duvall. The trail is a combination of doubletrack access roads, singletrack, paved trail and paved/dirt roads.

The first mile of the run from Blyth Park is a mile up singletrack trail. I would suggest trail shoes for this part. The rest of the run is wide dirt path under power lines so there is enough room to run w/ a group. A tricky part is finding your way over I-405 but once you do, it is really quite easy. This set of rolling hills makes for a great training run and definitely will work your legs.

The most popular section of this trail begins at what is known as Heart Attack Hill, coming off of the Sammamish River paved trail, and ends just before the very steep descent to the Snoqualmie Valley (approximately 7 miles).

Flora & Fauna

The surroundings are residential, semi-wooded valley and some densely-wooded sections. You also get a good mix of sun and shade on this trail. You'll see a lot of woodland birds as well!

Contacts

Shared By:

Trail Run Project Staff with improvements by Pete Connors

Trail Ratings

  3.3 from 7 votes

#24839

Overall
  3.3 from 7 votes
5 Star
14%
4 Star
43%
3 Star
14%
2 Star
14%
1 Star
14%
Trail Rankings

#1,129

in Washington

#24,839

Overall
18 Views Last Month
4,554 Since Mar 11, 2015
Intermediate Intermediate

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Photos

1/2 mile in Blythe Park. Beautiful trail!
Mar 19, 2018 near Bothell, WA
Purple clematis from the Tolt Pipeline Trail
Mar 11, 2015 near Bothell, WA
The peak of Veggie Slider Hill can occasionally be muddy.
May 10, 2017 near Bothell, WA
3 miles in looking east at the cascade mountains.
Mar 19, 2018 near Kingsgate, WA
Looking East along the Tolt Pipeline; Cascade Mountains visible in the distance
Mar 11, 2015 near Cottage…, WA

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Check-Ins

Oct 29, 2021
Wes Plate
I ran starting at the Horizon Hill Park trailhead in Lake Forest Park. At 4.3 miles the trail access is blocked by fences and no trespassing signs. 11.4mi
Mar 16, 2018
Jessica Daiger
Great run a bit muddy the first mile from Blythe. Hard to find the start but once I did it was great. Another strange part was running over I-405 7mi
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