The Bor occurrence is located near Horsefeed Creek about 74 kilometres south of the community of Atlin.

At the showing, chalcopyrite and pyrite mineralization is hosted within a series of brittle structures in upper Mississippian to Permian gabbro of the Cache Creek Complex. The strike of the host structures varies from 080 to 115 degrees. Mineralization is poddy and although up to 1 metre wide, is discontinuous. In 2003, two grab samples yielded grades of 0.54 and 5.10 per cent copper, respectively (Assessment Report 27304).

In late 2002, Copper Ridge Explorations Inc. staked the Joss’alun (104N 136) ground located 2.3 kilometres southeast of the Bor showing. In 2003, Imperial Metals Corporation optioned the claims to consolidate ownership into the Nak project and undertook a comprehensive exploration program. Three additional showings were discovered: the Jennusty (104N 137), located 1.6 kilometres west of the Bor, the Bor, and Box Lake (104N 139), located 4.9 kilometres southeast of the Bor. Imperial Metals Corp. announced in early 2004 that it would not be proceeding with its option on the Joss'alun copper property. Consolidated Norsemont Ventures Ltd. signed an agreement on June 2004, with Copper Ridge Explorations, whereby Norsemont could earn up to a 75% interest in the property. Consolidated Norsemont completed an induced polarization survey on the property in 2004.

In 2015, Imperial Metals Corporation carried out prospecting, rock and soil sampling programs on the Nak property in an area between the Joss'alun and Box Lake occurrences. A total of 30 soil samples and 4 rock samples were taken.

See Joss’alun (104N 136) for more details.