Black Hawk topographic map

Average elevation: 366 m

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Average elevation: 338 m

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Average elevation: 334 m

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Average elevation: 323 m

Average elevation: 269 m

Average elevation: 314 m

Average elevation: 372 m

Average elevation: 410 m

Several large working-class neighborhoods and industrial sectors have been built on what is called "Muscatine Island". This flat, sandy expanse was largely underwater before a portion of the Mississippi River rerouted to follow the course of the present-day Muscatine Slough. It is unclear when the river…

Average elevation: 189 m

Average elevation: 361 m

Average elevation: 266 m

Average elevation: 351 m

Average elevation: 377 m

Average elevation: 347 m

Average elevation: 345 m

Average elevation: 198 m

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Average elevation: 428 m

Average elevation: 352 m

Average elevation: 244 m