The Gallagher property, located 2.5 kilometres west of the Florence townsite, was worked from 1888 to 1890 and again from 1907 to about 1920. A number of shafts and open pits and one adit were excavated.

The property occurs in a thick mass of fine-grained grey and white limestone of the Mississippian to Lower Permian Milford Group. Production has consisted of high-grade silver ore, mainly from pods of rusty gossan near the surface. One pit exposed a narrow sheared zone striking 050 degrees and dipping 30 degrees to the north along which galena and minor chalcopyrite are scattered. One of the dumps contain blocks of vein calcite with clusters of galena and reddish sphalerite.