You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Marquette-Omena Jesuit Retreat on H22, 0.8 km S. of Omena, Leelanau Twp. Remove constraint Place: Marquette-Omena Jesuit Retreat on H22, 0.8 km S. of Omena, Leelanau Twp.