Ohio topographic maps

Situated below Lake Huron, Erie's primary inlet is the Detroit River. The main natural outflow from the lake is via the Niagara River, which provides hydroelectric power to Canada and the U.S. as it spins huge turbines near Niagara Falls at Lewiston, New York and Queenston, Ontario. Some outflow occurs via the…

Average elevation: 267 m

According to the U.S. Census Bureau, the county has a total area of 473 square miles (1,230 km2), of which 462 square miles (1,200 km2) is land and 11 square miles (28 km2) (2.3%) is water. The entire county has an elevation difference of less than 300 feet. The highest point is on the southern county line at…

Average elevation: 271 m

Average elevation: 313 m

Average elevation: 340 m

Average elevation: 321 m

Average elevation: 300 m

The elevation is 682 feet above sea level.

Average elevation: 269 m

Average elevation: 228 m

Average elevation: 320 m

Average elevation: 285 m

The river's headwaters, considered part of the North Fork, are located about 5 miles (8.0 km) from South Charleston in Clark County, near Plattsburgh. The river empties into the Ohio River at California, a neighborhood of Cincinnati in Hamilton County. Between the headwaters and the mouth, there is a 705-foot…

Average elevation: 278 m

Average elevation: 229 m

The general elevation of the county is roughly 1,050 feet (320 m) above sea level, and there are few areas in the county that deviate from this by more than 200 feet (61 m).

Average elevation: 308 m

Average elevation: 342 m

Average elevation: 326 m

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Average elevation: 247 m

Average elevation: 219 m

Average elevation: 250 m

Average elevation: 213 m

Average elevation: 225 m

Hardin County Airport (FAA LID: I95) is the largest paved facility and is located 3 miles south of Kenton, Ohio on CR 135. The runway is 4,803 feet long at an elevation of 1,030 feet. Maintenance, fuel and storage are available.

Average elevation: 301 m

Average elevation: 293 m

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Average elevation: 267 m

Average elevation: 280 m

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Average elevation: 307 m

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Average elevation: 327 m

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Average elevation: 203 m

Average elevation: 299 m

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Average elevation: 277 m

Average elevation: 280 m

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Average elevation: 288 m

Average elevation: 351 m

Average elevation: 294 m

Average elevation: 255 m

The land rises quickly from the lake shore elevation of 569 feet. Public Square, less than one mile (1.6 km) inland, sits at an elevation of 650 feet (198 m), and Hopkins Airport, 5 miles (8 km) inland from the lake, is at an elevation of 791 feet (241 m).

Average elevation: 221 m

Average elevation: 189 m

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Average elevation: 276 m

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Average elevation: 307 m

Average elevation: 299 m

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Average elevation: 301 m

Average elevation: 195 m

Average elevation: 249 m

Average elevation: 299 m