You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place About 1 mile south of Beardstown on State Route 100 & US 67. Southwest side of sand pond on west side of road. Arenzville West 7.5 minute topographic map. Remove constraint Place: About 1 mile south of Beardstown on State Route 100 & US 67. Southwest side of sand pond on west side of road. Arenzville West 7.5 minute topographic map. Place Cass Remove constraint Place: Cass Place Illinois Remove constraint Place: Illinois Place USA Remove constraint Place: USA Topic Magnoliopsida Remove constraint Topic: Magnoliopsida