A man who admitted charges of kidnap, rape, assault and false imprisonment has been jailed indefinitely at Caernarfon Crown Court.
John Bevan, 46, of no fixed address, but formerly from Flintshire, must serve at least seven years before he can be considered for release.
His victim suffered a four-hour ordeal in which he threatened to kill her and bury her in woodland, but she escaped.
Jailing Bevan, judge Merfyn Hughes QC said he had "little victim empathy".
He added: "You do not have any real insight as to why you committed the offences."
Bevan carried out his attack in May, in Flintshire.
The victim cannot be identified and certain details of the case cannot be reported in order to protect her identity.
She was eventually left bound in a disused van.
The judge said she showed remarkable courage in escaping and running barefoot to get help.
Bevan later handed himself in to police.
The judge said he accepted the conclusions of a pre-sentence report that Bevan posed a high risk of causing serious harm to the public.
In a statement after sentencing, Det Insp Alun Oldfield said: "These offences are almost unparalleled in their depravity and caused a great deal of pain and anguish to his victims.
"On the evening the offences were committed, North Wales Police mobilised every possible resource including firearms officers, detectives, crime scene investigators, dog handlers, armed response vehicles, the force helicopter, search teams and response officers from all over Flintshire."
He added: "I would like to reassure the public that these offences are not commonplace in north Wales and that we are fully prepared and equipped for investigating such offences."