Sink CreekSink Creek is a stream in northwestern Missouri in the United States. It is a tributary to the Nodaway River and is 5.7 miles long.EtymologyA variant name was "Sinking Creek". The creek was so named because it is a losing stream along part of its course.GeographySink Creek is a left tributary of the Nodaway River and joins it 54.7 miles before its mouth in the Missouri River. The stream begins about 3 miles northeast of Clearmont, travels southwesterly to a point about 2 miles northwest of Clearmont where is joins the Nodaway River. Sink Creek is crossed by US 71 two miles north of Clearmont not long before its confluence with the Nodaway River.