The Lemax North sphalerite veins are located 4.5 kilometres northeast of Rosebery, on the east side of Wilson Creek, east of Slocan Lake.

Veinlets carrying quartz, pyrite and sphalerite are shown on figure 3, Assessment Report 7514. The veins are shown to crosscut quartzites (figure 3, Assessment Report 7514) of the Triassic Slocan Group which is composed of quartzites, argillites and limestones. Slocan Group sedimentary rocks are intruded by quartz monzonite of the Rosebery stock of unknown age (GSC Open File 432). There is no additional published information on the occurrence.

Prospecting work is mentioned in 1935 (GSC Memoir 184). The property was staked by Peter Leontowicz and optioned to United Bata Resources Limited (later Pan Ocean Oil Limited), who in 1970 (Assessment Report 2944) undertook reconnaissance soil sampling (875 samples analysed for molybdenum and copper). In 1979, Amax Potash Limited optioned the property and undertook a program of geological mapping and collected 369 soil and stream sediment samples which were analysed for 11 elements including lead, zinc and silver.