Furnace Creek is a stream in Washington County in the U.S. state of Missouri. It is a tributary of the Big River.
The stream headwaters are at 37.87°N -90.7944°W about five miles south of Potosi and the stream flows south to southeast to its confluence with the Big River is at 37.8117°N -90.7722°W adjacent to Missouri Route 21 three miles north of Caledonia.[1]
Furnace Creek was named for a blast furnace near its course.[2]