The Joh 5 occurrence is located 6 kilometres south of Johanson Lake, on a ridge crest about 1.5 kilometres west of upper Darb Creek (EMPR Open File 2005-4). It comprises a narrow, northeast trending zone of pyrite-mineralized quartz veins, about 20 centimetres wide, that cuts volcaniclastic rocks of the Upper Triassic Takla Group. A grab sample of this vein material contained 5.5 grams per tonne gold (Assessment Report 24778, Sample KP0274).

In 1985, BP Resources completed a program of geological mapping and rock, silt and soil sampling on the area as the Goldway claims. In 1994, Noranda completed a program of soil sampling and a ground magnetometer survey on the area as the Jo 4 claim. In 1994 and 1995, Hemlo Gold Mines completed programs of rock and soil sampling, geological mapping and a ground magnetic survey on the the Dort 1-4 and Jo 4 claims (Assessment Report 24778).

In 1996, Catalyst Ventures, on the behalf of Battle Mountain Gold (formerly Hemlo Gold Mines lnc.), completed a program of geological mapping and rock sampling. Battle Mountain conducted a 2-hole, 461-meter diamond drill program on their Mariposite Property consisting of the Darb 1, Dort 1-4 and Glacier 1-3 claims. Battle Mountain incorporated geological and geochemical data collected during the 1994-95 field seasons in their 1996 compilation. Of 743 rock samples collected during the 1994/95 program, 70 samples returned results of greater than or equal to 0.5 grams per tonne gold equating to about 9 per cent of the total sample population.

In 2012, J.B. Kreft prospected the area (Assessment Report 33552). Work focused on the area immediately surrounding the Johan occurrence (094D 137). Five out of the eight silt samples collected returned gold values greater than 100 parts per billion gold. One rock sample obtained from a quartz vein returned 0.14 gram per tonne gold over over 0.70 metres (Assessment Report 33552). Kreft's Dort property claims covered the area from the Dort 2 showing (094D 204) in the south to the Tar showing (094D 138) in the north, and several occurrences between.