Darren told me to go ahead and post, but I thought it would be unfair for me to answer so soon. Hmmm... what could that mean? Hmmmm...
North edge of Portland, OR 45 degrees 35 north 122 degrees 44 west Peninsula Junction Portland International Raceway.
Yup! Just in case you are ever interested in visiting this location, keep in mind that good ol' Steamdonkey74 could walk there to meet you. I drive through this area at least once a week. Where that track seems to "disappear" at the bottom of this view (the one Dave Porter posted) it actually goes into a tunnel that goes under the bluff that a lot of the residential part of North Portland sits upon, approximately under N Dana St. This is a great place to go to probably see a train. They come through often enough that you don't normally have to wait long.