The HALL showing is located 1.6 kilometres south of Arlington Lakes, and approximately 12 kilometres north-northeast of Carmi.

The showing occurs in an unnamed Middle Jurassic quartz diorite, which was previously mapped as Middle Jurassic Nelson Intrusions (Geological Survey of Canada, Map 1736A). The quartz diorite lies near the west contact of a north-south band of Carboniferous-Permian Anarchist chlorite-biotite schist. An adit at this site has been driven eastward on a quartz vein in a shear striking 015 degrees and dipping 60 degrees west. Copper (chalcopyrite?) has been noted but no other information is available on the mineralogy.

A similar mineral occurrence in this area is BRU 22 (082ENW045).

The general area has numerous old workings, pits, and adits which date from the early 1900s. Recent work includes a 1971 magnetometer survey for Hudson's Bay Oil and Gas Ltd. and prospecting and geological mapping in 1973 for K.F. Brunning. Additional prospecting was carried out in 1987 by James McLeod for Edward Carson & Associates. The 1971 magnetometer survey identified a magnetic anomaly along the geological contact between a gneissic diorite and a mafic diorite. It was noted that copper mineralization is coincident with this magnetic anomaly. Assays from this showing are not recorded.

In 1996, Madman Mining Co. Ltd. completed a prospecting, soil sampling, and a VLF-EM geophysical survey on the property containing the occurrence.

In 2015, Explorex Resources Inc completed magnetic and VLF-EM geophysical surveys, a prospecting and sampling program on the property containing the occurrence.

In 2017, Coast Mountain Geological Ltd. completed an exploration program including soil sampling, rock sampling, and 26.4 line-kilometres of ground magnetic and VLF-EM surveys.

In 2018, Clarmin Exploration Inc. completed a prospecting and soil sampling program on the Arlington property (Assessment Report 36956). The property was returned to Explorex Resources Inc. in late 2018.