Rosseau, OhioRosseau is an unincorporated community in Morgan County, in the U.S. state of Ohio.[1] HistoryRosseau was laid out around 1836.[2] A post office was established at Rosseau in 1837, and remained in operation until 1911.[3] References
39°34′25″N 81°56′49″W / 39.57361°N 81.94694°W
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