I bought a new trailer, old trailer was basically used for hunting. Mama and the boys want to start camping more in the new trailer instead of tent camping in unapproved camp spots around the lakes of Mt. Hood. I've camped most of my life along the Clackamas river and Mt. Hood but always out of the truck. Now that I have a new fancy trailer we would like to use it more. But I've noticed that almost every camp ground that accommodates trailers and RV's get booked in February for the summer season. Not looking for your secret oasis, as I wouldn't want to share mine, but what are your favorite campgrounds that will accommodate RV's and trailers that aren't booked out 4-6 months in advance? I live in Vancouver but grew up in Oregon so always gravitate to what I know, and don't know many of the spots in Washington state.