Well, most everything in OR is south of Portland! (Little joke there as I assume you mean relatively close to Portland itself)
What type of park are you looking for and your needs / wants?
Have you considered going over on the Coast in OR? We just spent (5th time) nearly a month there in three different places. And we will be another two weeks in OR before heading back thru CA (Hwy 395).
And I suggest RV Park Reviews - don't go back more than two years and throw out the top and bottom one for the most part.
Love both OR and CO (we lived in CO and have been back many times and plan to be back there again next year).
