Along Yeth Creek, Upper Triassic Stuhini Group volcanics occur in fault contact with the Lower to Middle Jurassic Laberge Group, Inklin Formation which is comprised of intercalated sediments. The Stuhini Group is comprised mainly of andesitic volcanics, lava flows, volcanic breccia, and agglomerate with minor associated tuff and volcaniclastics.

The occurrence is reported to be a wide zone of quartz stringers mineralized with galena, sphalerite, and pyrite.