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Start Over Year 1985 Subject Gravel Bounding Box -180 -89.81531 180 89.456192

1. 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.

2. Geologic Units (Polygons): Albion River Watershed, California, 1984-2000

Datasets Stanford University Public content
1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, and 2000. California Geological Survey. This polygon shapefile depicts geologic units including sand, silt, gravels, alluvium and colluvium deposits within the Albion River watershed in M... California Geological Survey.

3. 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.