DH and I just finished the Seattle Int'l Randonneurs Maltby-Granite Falls 100 km ride:
http://ridewithgps.com/routes/3728236
The ride was just over 64 miles and started and ended at the Maltby Cafe. What a scenic route! It went through mostly quiet country roads, with lots of horse ranches and farmland. It was also mostly downhill with lots of long descents, a few miles of rollers, and only a few climbs, kind of like my favorite loops around the Kitsap Peninsula, even including some water views of Lake Roesiger.