The claims straddle a regional northeast trending and plunging syncline of Middle Jurassic Salmon River and Betty Creek Formations of volcanic and sedimentary rocks. The Salmon River Formation underlies the majority of the claims. The formation is mapped as siltstone, greywacke, sandstone, argillite, conglomerate and littoral deposits. The Middle Jurassic Betty Creek Formation underlies the Salmon River sedimentary sequence and forms a band which besects the property from the southwest to the northeast. The formation is mapped as green, red, purple and black volcanic breccias, conglom- erates, sandstones and siltstones. The Unuk River Formation is found in the southwest corner of the Lance 3 claim. The Unuk River Formation is mapped as green, red and purple volcanic breccias, conglomerates and sandstones. Two faults are mapped along the eastern edge of the claims, one trends west and the other northwest.