You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Language UND Remove constraint Language: UND Place Tyedinaga Township, Salmon River Alvar ANSI, 2 km SSW of Lonsdale bridge over Salmon River. Remove constraint Place: Tyedinaga Township, Salmon River Alvar ANSI, 2 km SSW of Lonsdale bridge over Salmon River.