Ohio Gold Documents General Geologic Maps Clubs General Geological and Geophysical Study of the Preglacial Teays Valley in West-Central OhioGlacial Till Prospecting in Southwest Ohio: Implications for Improved SamplingOhio Geology Newsletter: Gold in Ohio Geologic Maps Glacial Map of OhioGlacial Geology of Richland County OhioGlacial Geology of Northeastern OhioGlacial geology of Columbiana County, OhioGlacial Geology of Lake County, OhioGlacial Geology of Ross County, OhioGlacial Geology of Summit County, OhioGlacial geology of Ashtabula County, OhioGlacial Geology of Medina County, Ohio Clubs Ohio State Prospectors Association (OSPA)GPAA Buckeye Chapter Ohio Prospecting Youtube Channels