You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Language UND Remove constraint Language: UND Place Along M-134 at the head of Beavertail Bay Remove constraint Place: Along M-134 at the head of Beavertail Bay Place Mackinac Remove constraint Place: Mackinac Topic Equisetum Remove constraint Topic: Equisetum Topic Polypodiopsida Remove constraint Topic: Polypodiopsida