Monmouth? You are going to be closer to Salem there... I have never been to Salem so maybe someone else should tell you about that.
And as to alby.... they won't let you pump your own gas. I could never figure out why.... although I've heard they are trying to get that law revoked.
You will be in Polk county which is further South of Portland, but I think you will be the same distance, maybe closer to the Coast. Definitely close to Willamette Valley wine region.... although I never ventured that far south (I mainly tour near Beaverton).
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