COUNTY BEDROCK-TOPOGRAPHY MAPS

COUNTY BEDROCK-
TOPOGRAPHY MAPS

County maps on a topographic base at a scale of 1:62,500 (1 inch equals about 1 mile) showing hand-drawn elevation contours on the bedrock surface. County bases composited in 1970's. Bedrock-topography compilation dates range from 1971 to 1989. These maps are useful for regional overview, but the information portrayed has been superseded by the 1:24,000-scale bedrock-topography maps. Black-and-white xerographic copies. Each map is $4.00. Please order by county and OF number.

Adams County-OF 243
Ashtabula County-OF 206
Brown County-OF 223
Butler County-OF 227
Clermont County-OF 264

Crawford County-OF 221
Cuyahoga County-OF 118
Darke County-OF 266
Delaware County-OF 119
Erie County-OF 208

Fulton County-OF 28
Geauga County-OF 117
Hamilton County-OF 229
Hancock County-OF 235
Hardin County-OF 231

Henry County-OF 237
Huron County-OF 210
Lucas County-OF 241
Mahoning County-OF 247
Marion County-OF 239

Medina County-OF 219
Mercer County-OF 268
Ottawa County-OF 213
Portage County-OF 204
Preble County-OF 271

Richland County-OF 224
Ross County-OF 207
Sandusky County-OF 214
Summit County-OF 116
Van Wert County-OF 115

Wood County-OF 245
Wyandot County-OF 217

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Last update on February 22, 2000
Division of Geological Survey http://dnr/state.oh.us/geosurvey/