The G.H. showing occurs on the reverted Crown grant Lot 2810, located approximately 1.5 kilometres north of the summit of Mount Franklin.
Mineralization consists of massive magnetite with pyrite and minor amounts of chalcopyrite. The skarn(?) is developed near the contact between a limy quartzite of the Devonian-Triassic Harper Ranch Group and granodiorite of an unnamed Middle Jurassic intrusion to the north. Nearby, cherty quartzite, argillite, altered tuff and greenstone are part of the Harper Ranch Group.
In the early 1900s, the GH property was part of the Gloucester Group of claims, which included the adjacent GLOUCESTER (082ENE005) showing. In 1901, a 7.3-metre deep shaft existed on the GH property. In 1902, the GH was Crown granted as Lot 2810 to L.M. Thewby and associates. In 1905, the GH "skarn" was described as being up to 12 metres in width and traceable for about 100 metres on the surface.
In 1920, the GH showing was drilled by the Provincial Government under the Mineral Survey and Development Act. A 12-metre diamond drillhole was bored through the magnetite. Specks of chalcopyrite, along with hematite, were intersected. Traces of gold and silver were reported, but no assays were given. A second hole was started, but not finished.
In 1964, Franklin Mines Ltd. optioned the GH property from Huestis Mining Corporation Ltd. along with the surrounding area. The results of sampling on the adjacent GLOUCESTER property were filed for assessment work, but no work is recorded on the GH property.
In 1977, the GH showing was prospected by T.E. Lisle of the Hecla Mining Company. No new mineralization was discovered.
In 1982, Guy Allen prospected the GH and GLOUCESTER showings. Details of the workings and assays for the GLOUCESTER property were filed for assessment work; no work on the GH property was recorded.
In 1987, the GLOUCESTER and GH reverted Crown grants were acquired by R. MacKillop and examined by M.L. Malott. Investigations on the GLOUCESTER showing confirm earlier reports; however, no references were made to the GH showing.