Mormon Mill is a vanished Mormon colony established in 1851 on Hamilton Creek in Burnet County, in the U.S. state of Texas. The site is located on Mormon Mills Road 5 miles (8.0 km) north of Marble Falls and 10 miles (16 km) south of Burnet. Mormon Mill has also been known as Mormon Mills, Mormon Mill Colony and Mormon Mill Historical Site. Designated a Recorded Texas Historic Landmark in 1936, Marker number 9733. The population moved to another county in 1853, and no buildings remain of the colony.