My partner did cycle across North America.

This page has photos and gives general notes
http://cycling-touring.thecyclistweb...005_Oregon.cfm

He cycled both south and north between Astoria, OR & Gold Beach OR. Each direction was on slightly different roads.

One thing for certain that I do remember his comments to me since he was emailing /phoning me each evening, was the amount of fog when setting off in early morning.