The Radio showing is located on the Radio claim (Lot 4571), about 13 kilometres northeast of Stewart. The showing is on a small creek on the north side of Bitter Creek, approximately 1.1 kilometres northeast of the confluence of Radio and Bitter creeks.
The area is underlain by north to north-northeast striking, folded argillites of the Middle Jurassic Salmon River Formation (Hazelton Group) (Bulletin 63). The sediments are cut by several north to northwest-trending dikes that belong to the Portland Canal dike swarm.
Mineralization comprises two quartz lenses, exposed near the creek, containing pyrite and chalcopyrite. Both occurrences are hosted in sheared argillite and altered and fractured dike rock. At the first locality, a fault zone containing crushed and altered dike rocks and contorted argillite forms the west wall of the creek canyon. A chip(?) sample across 30 centimetres of well mineralized quartz assayed 0.36 per cent copper, 41.8 grams per tonne silver and 0.4 gram per tonne gold (Assessment Report 13352).
About 50 metres east of the creek, a trench exposes another occurrence of quartz-pyrite-chalcopyrite. A chip(?) sample collected in 1979, presumably from the showing, assayed 1.25 per cent copper, 10.6 grams per tonne silver and 0.2 gram per tonne gold across 5.5 metres (Assessment Report 8095).
The early history of the showing is not clear. The Crown Mining Company held ground in the area before 1910 (Geological Survey of Canada Map 28A); according to early records this company held both the Swede American and Maggie claim groups in the area. Exploration work, including tunnelling, was reported in 1910. The company was dissolved in 1918. In 1923, Erickson and Peterson restaked the area as the Radio claim group. Radio-Stewart Mines was formed in 1924 and acquired the Radio claims. Intermittent prospecting and opencutting were done during 1925-29. The Radio claims were Crown granted to the company in 1930. The claims were subsequently acquired by Rufus-Argenta Mines, formed in 1955. In 1966, the company name was changed to Crest Ventures Limited. That year Crest Silver Company Limited, a subsidiary of Crest Ventures, acquired the claims and carried out some geological mapping during 1966-67. During 1970-73, Ardo Mines Ltd. optioned the property and carried out prospecting, magnetometer and electromagnetic surveys. During 1979-80, Beaver Gold Resources Inc. acquired the property and carried out mapping, prospecting and sampling. No further work was reported on the showing until 1984 when the property was owned by Grey Silver Mines Ltd. That year Maralgo Mines Limited optioned the property and flew an airborne VLF-EM and magnetometer survey over the area and conducted geological mapping, prospecting and sampling on the occurrence. No more work was reported until 1989 when Grey Silver Mines performed geological mapping, sampling and soil surveys in the area. The following year Varitech Resources Ltd. conducted a program of geological mapping, prospecting, sampling and soil, VLF-EM and magnetometer surveys in the area. The showing was resampled that year. In 2006, a helicopter-borne AeroTEM II electromagentic and magnetic survey was flown over the Silver Cloud property on behalf of Teuton Resources Corp. for a total of 150.0 line kilometres with 100 metre line spacings.
