What about Norma Jane Cavilee?
https://www.findthemissing.org/en/cases/32917/0/
According to this article, she may have left Salem to go to Cave Junction for her boyfriend. The most likely route (down I-5) would have put her somewhat closer to where the remains were found.
http://koin.com/2016/05/24/the-rough-life-and-disappearance-of-norma-cavilee/
https://www.findthemissing.org/en/cases/32917/0/
According to this article, she may have left Salem to go to Cave Junction for her boyfriend. The most likely route (down I-5) would have put her somewhat closer to where the remains were found.
http://koin.com/2016/05/24/the-rough-life-and-disappearance-of-norma-cavilee/