1. Oil and gas pipe lines in Ohio, 1968 Maps The Ohio State University Public content 1968. Ohio. Division of Geological Survey. Scale 1:500,000. Coordinates: W 84⁰52ʹ--W 80⁰30ʹ/N 42⁰--N 38⁰22ʹ Includes tables of "Oil pipe lines," "Gas storage areas," and "Gas pipe lines." "A... Ohio. Division of Geological Survey.