Moro is located in Sherman County (of which is the county seat) east of the The Dalles, between Wasco and Grass Valley along US Highway 97. The Deschutes River is found a short distance east of Moro.
The first settler in this location was Henry Barnum about 1868. Apparently the name was selected in a drawing from a hat, Moro being the name proposed by Judge O. M. Scott, who came from Moro, Illinois. This community was founded in 1899.
Amenities in Moro include the 1899 Courthouse, a City Park with a Wall of History, Sherman Pre-School and Moro Community Presbyterian Church.