Interurban North – Snohomish – Monroe – Fall City – I-90 Interurban Century North watch out for traffic near the intersection with Novelty Hill road.  (Issaquah-Fall City evidently isn’t a good descent – this route takes Highlands, others recommend Black Nugget)
Duwamish – Interurban South – Green Rriver – East side Lake Washington – Burke Gilman Interurban Century South based on a ride done in training for the 2002 STP – improved based on Woods Southwest #96
Arlington – Darrington – Sedro Wooley Woods puget sound #35 great ride – a couple of grated bridge decks, a little traffic on highway 9 and 530. Concrete – Sauk Valley Rd. is a lot more fun than Highway 20.
Fall City – Marysville Wert Bakeries #B 11-C avoiding those pesky railroad grades
Burke Gillman – Bothell – Snohomish – Centennial – Interurban rail-trail century Burke Gilman, Centennial and Interurban all in the same ride.  Is this a great country or what?