performing or functioning in the best possible manner with the least waste of time and effort; having and using requisite knowledge, skill, and industry; competent; capable: a reliable, efficient assistant.
Marengo is a village in Morrow County, Ohio, United States. The population was 342 at the 2010 census. Marengo is south of Mount Gilead, the county seat.
March 17, 1994. The Belmont County Courthouse is located at 101 West Main Street in St. Clairsville, Ohio, United States. It sits on the highest point in the St. Clairsville area and is thus visible from Interstate 70 and many other points in the Ohio Valley.