You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place E 1/2 Sec 19 & 30 T49N-R39W ca. 6 miles NNW Bruce Crossing. Remove constraint Place: E 1/2 Sec 19 & 30 T49N-R39W ca. 6 miles NNW Bruce Crossing. Topic Polygonum Remove constraint Topic: Polygonum