You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Language UND Remove constraint Language: UND Place Grattan Twp., ca. 3 mi. e. of Cannonsburg on 6 Mile Rd., and ½ mi. north on gravel road/driveway. Saul Lake Bog Preserve. T8N, R9W Sec. 19 Remove constraint Place: Grattan Twp., ca. 3 mi. e. of Cannonsburg on 6 Mile Rd., and ½ mi. north on gravel road/driveway. Saul Lake Bog Preserve. T8N, R9W Sec. 19