Santa Maria, S.S.
Caption: The Santa Maria's wreckage provides shelter for its former crew
The Santa Maria wreckage became the colonists' main shelter — dubbed "the cabin" — with cubicles devoted to individuals' rooms and a herb-filled medical area as well.
It was stripped of all non-working technology so as not to remind the survivors of their past lives. Its registry number confirms it is of civilian, not Starfleet, registry.