Huron river concretions   Save
Huron river concretions
Description: Reverse reads: "Concretions largest in world Huron River Ohio State Dept. of Conservation" A concretion is a volume of sedimentary rock in which a mineral cement fills the porosity. View on Ohio Memory.
Image ID: SA1039AV_B11F10_048_001
Subjects: Concretions; Rivers
Places: Ohio