The Hot Punch occurrence is located at the head of Delphine Creek at an elevation of 1800 metres. The property consists of four Reverted Crown grants, Lot 5100 (Hot Punch), Lot 11433 (Hot Punch No. 2), Lot 11434 (Hot Punch No.3) and Lot 11435 (Hot Punch No.4).

Regionally, the area is underlain by Proterozoic clastic sedimentary rocks of the Purcell and Windermere supergroups and by lower Paleozoic strata of the Beaverfoot and Mount Forster formations (Geoscience Map 1995-1).

The Purcell Supergroup strata include the Aldridge, Creston, Kitchener, Dutch Creek and Mount Nelson formations. The Windermere Supergroup unconformably overlies the Purcell Supergroup rocks and includes the Toby Formation and Horsethief Creek Group (Paper 1990-1).

In the vicinity of the occurrence, rocks of the Kitchener and Dutch Creek formations have been further subdivided and assigned to the Van Creek and Gateway formations. The Van Creek Formation correlates with the Lower Kitchener Formation while the Gateway Formation is equivalent to the lower portion of the Dutch Creek Formation. The Mount Nelson Formation has been subdivided into seven discrete members, a lower quartzite, a lower dolomite, a middle dolomite, a purple dolomite, an upper middle dolomite, an upper quartzite, and an upper dolomite (Open File 1990-26).

Rocks of the Horsethief Creek Group, Beaverfoot and Mount Forster formations are folded and overthrusted by rocks of the upper portion of the Dutch Creek Formation and the lower members of the Mount Nelson Formation. The sedimentary rocks have undergone regional metamorphism to at least greenschist facies.

The Hot Punch is hosted within dolomite of the Mount Nelson Formation and may be, in part, also hosted within conglomerate of the Toby Formation (Open File 1990-26). Mineralization occurs in 0.1 to 1 metre wide fissure veins in sheared dolomite. A total of 74 tonnes were mined between 1908 and 1926 to produce 108,582 grams of silver, 27,268 kilograms of lead, 904 kilograms of zinc and 62 grams of gold. Ore minerals include galena, sphalerite, tetrahedrite and minor chalcopyrite.

The property has been explored by three separate adits and a small shaft. In 1996, Miner River Resources conducted geochemical and geophysical work, resulting in defining mineralization over a strike length of 600 metres. Miner River amalgamated in May 1999 with Eagle Plains Resources Ltd.