Collection of Paper reports from Ohio

A statewide investigation of the sand and gravel resources on a county by county basis was conducted in the 1970 and 1980¿s by the ODGS. Nine published ODGS Report of Investigations and unpublished data for additional counties were generated by the end of this project in the late 1980¿s. Large samples collected from field locations, measured sections and core borings were returned to the laboratory for air drying, sieve analysis using U.S. Standard Sieve Series, and pebble counts. All cobbles and pebbles greater than 1.27 cm in diameter were identified and counted. See collection inventories and metadata for additional details.