The Lindsay Fr. occurrence area is underlain by pillow basalt breccias and amygdaloidal basalt of the Upper Triassic Karmutsen Formation (Vancouver Group) close to the northern extension of the Holly fault.

A small quartz vein 10 to 25 centimetres wide, occurs in a brecciated shear zone striking 240 degrees. Mineralization consists of pyrite, chalcopyrite and trace galena. Another similar shear zone in pillow basalt breccias hosts another small, pyritic quartz vein with rare native gold.