The other woman, was not deposited anywhere, various posts here have stated the police believe and it would appear, firmly believe, that the unidentified female was killed where she was. There is evidence for this, repeated several times. Including witnesses who saw her there alive.It looks like Jean was killed after she stopped at a picnic site and the other woman from 1979 was probably found at the deposition site
It would help if people would please read the links and proofs so we don't circle back to wrong information. It is misleading to others. I myself have slipped up and try to edit my posts accordingly if within time or correct myself in another post. I think others have corrected me too for mainly silly mistakes from lack of concentration or forgetfulness, which I am grateful for, so please keep doing that.