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Start Over Subject Gravel Year 1985 Bounding Box -40.000931 39.999015 -39.999064 40.000987

1. Sand and gravel resources of Ashtabula County, Ohio

Maps The Ohio State University Public content
1985. Risser, Michele. by Michele L. Risser ; cartographic drafting by Robert L. Stewart. Includes tables, water-well logs and location map. Includes bibliography. Ohio. Division of Geological Survey.

2. Sand and gravel resources of Ashtabula County, Ohio

Maps The Ohio State University Public content
1985. Risser, Michele. Includes bibliography. by Michele L. Risser ; cartographic drafting by Robert L. Stewart. Includes tables, water-well logs and location map.