The idea of this route is to ride 100 miles on the Burke Gilman and Centennial Trails. (I believe that Gilman was the guy behind the Seattle, Lakeshore and Eastern which is where the right of way for the Centennial trail came from.) The return is on the interurban and the route begins and ends at home.
- Head south on 1st Ave. NW
- Turn left onto 60th
- Turn right onto Greenwood
- Take the first left onto 59th
- Take the first right onto Phinney (has a bike lane)
- Turn left onto 50th (at the light)
- Turn right onto Fremont (at the light)
- Go down the hill (may have to stop for the light at 38th)
- Turn left onto 34th
- Find the Burke Gilman trail on the right at the intersection with Stone Way
- Ride the Burke Gilman to Bothell and the I-405 intersection
- Take the trail branch on the left signed to the UW-Bothell campus
- On the other side of the campus exit onto Beardslee and bear right as it turns into 195th and crosses I-405.
- Turn left on North Creek Parkway and follow it up to 240th (alternatively find the partially unpaved North Creek Trail in the brush and follow its’ more straightforward route.)
- At 240th turn left and then bear right on Fitzgerald.
- At the bottom of the hill jog right on 228th and then turn left on 29th Dr. SE
- Enter the Canyon Park business campus.
- Continue on 29th as it turns into 26th
- Turn left onto 220th.
- Continue on 220th until it intersects the Bothell Everett highway and turn right.
- Ride the Bothell Everett highway until it intersects 132nd
- Turn right and ride 132nd (SR 96) to Seattle Hill Road
- Turn left on Seattle Hill Rd and ride it down a steep hill to Lowell Larimer Rd. (a left on 51st and a right when it ends provides a longer route to the same place with less traffic)
- Turn right on Lowell Larimer Rd
- Cross SR 9 (there’s a light)
- Continue on Lowell Larimer to Broadway
- Turn right onto Broadway and ride a short distance uphill.
- Turn left onto Springhetti
- Turn right onto airport way; ride around the south and east sides of the field, cross the railroad tracks and the bridge as the name changes to Avenue D
- Turn right onto 1st St.
- Turn left onto Maple, cross D street
- Look for the Centenial trail head on the right
- Ride Centennial Trail to the Lake Cassidy trailhead
- Return to Maple Street trailhead
- Bear right on Maple and continue to 1st St.
- Turn right onto 1st and continue to Avenue D
- Turn left onto Avenue D and ride over the bridge
- Turn right onto Lowell River Rd.
- Continue on Lowell River Rd to Lowell
- Turn right onto 2nd street
- Continue on 2nd as it jogs and turns into 3rd
- Turn left onto 41st
- Continue on 41st to Colby
- Turn left at Colby and find the Interurban trail on the sidewalk on the east side of the street (that’s the sidewalk on the left side of Colby if you’ve made the left and are facing south)
- From 41st to Everett Mall Way the Interurban alternates between trail segments and bike lanes. There is a big dog-leg to get under SR 526 at E. Casino Rd.
- After crossing under the highway, turn right on 84th
- Continue on 84th until you see the obscure Interurban trailhead on the right at the base of a hill.
- The trail segment puts you out on West mall Drive. Take that past the Police Station and through the Mall to the point where the trail resumes west of the I-5 rest area.
- Continue on the trail to it’s end in Shoreline.
- Cross 145th and continue south on Linden
- The trailhead to the Seattle segment of the Interurban is at 128th
- Ride the Seattle Inteurban to it’s end at 110th
- Exit right onto 110th and ride to Dayton.
- Turn left onto Dayton and ride to 83rd
- Turn right onto 83rd and ride to 1st NW
- Turn left onto 1st NW and ride home