You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Ravine small stream at SW side of US Hwy. 231 and Choctawatchee River bridge, just NE of Newton Remove constraint Place: Ravine small stream at SW side of US Hwy. 231 and Choctawatchee River bridge, just NE of Newton Topic Ctenidium Remove constraint Topic: Ctenidium