Ah, yes apparently Europeans have the vice versa blindness Americans tend to have towards European topography.
I may have misjudged the distances between Silverdale and Seattle... it looked to be less than 50 KM.
(I also judged US citizens to be more mobile than their European counterparts, but lacking car and public transport, your can hardly be called mobile
)
edit: actually, I figured Silverdale to be a suburb of Seattle complete with infrastructure.
Well, to give you some idea- I'm on the low end of daily driving with about a 13km route away from my house, though I should emphasize driving as I then ride public transit for something like 30km over to the city and a little less than another 10km over to where I'm getting a higher education. Most people look at me like I'm very unfortunate to have a commute of that length.
About the furthest I go opposite the city is about another 30km to where my sister lives, which is the next biggest city. If the space between wasn't so much marsh and other undesirable building area I'd probably have a range about the same size as Seattle.