http://www.rootsweb.ancestry.com/~ohhamilt/histhc/255.htm :
founded by John CAMPBELL, probably during the summer or fall of 1793, is said by Mr. OLDEN, in his Historical Sketches and Early Reminiscences, to have been established seven or eight miles southeast of DUNLAP' on the east bank of the Great Miami, opposite the present village of Miamitown. Little seems to be known concerning it. Mr. OLDEN says:
The settlers around the station were few in number; no preparations for defense were made; and, having been established late in the period of Indian hostilities, no depredations were committed in the neighborhood, consequently no important historical events are attached to it."
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Not in Butler County?:
http://www.northamericanforts.com/East/oh-sw.html#butler