Topaz is an unincorporated community in northeast Douglas County, Missouri, United States.
[1] Topaz is an old mill site located on the North Fork River.
[2] A post office called Topaz was established in 1893, and remained in operation until 1943.
[3] The community's name most likely is a transfer from a place in a western state.
This Douglas County, Missouri state location article is a stub.