Oto is an unincorporated community in Stone County, in the U.S. state of Missouri. The community is located on Crane Creek, approximately four miles north of Galena.Forsyth, Missouri, 15 Minute Topographic Quadrangle, USGS, 1907 (1921 rev.) Missouri Route AA passes through the community along Oto Ridge to the north of the Crane Creek crossing.Galena, Missouri, 7.5 Minute Topographic Quadrangle, USGS, 1956-7
History A post office called Oto was established in 1877, and remained in operation until 1913. According to tradition, the name "Oto" was chosen on account of its brevity.
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