| 21. | It is located near the midpoint between the Rock Rivers.
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| 22. | Doon is drained by the Rock River, a tributary of the Big Sioux River.
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| 23. | Today the fort's original location along the Rock River is marked with a monument.
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| 24. | In 1888 he took canoe trips on the Rock rivers.
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| 25. | There he was educated at Rock River Seminary and later at De Paul University.
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| 26. | Fountain Lake and Albert Lea Lake are part of the Shell Rock River flowage.
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| 27. | It was on the Rock River in Dixon where Ronald Reagan was a lifeguard.
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| 28. | WSDR broadcasts a format to the Rock River Valley.
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| 29. | The Rock River flows through the western part of the town, also to Missisquoi Bay.
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| 30. | Straus founded Rock River Communications in 1995 in Manhattan.
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