Black Pine is underlain primarily by strata of the Pennsylvanian to Permian Oquirrh Group, which overlies Devonian and Mississippian strata on a series of low-angle normal faults. The Oquirrh Group is divided into a 300 meter thick section of “middle plate” consisting of silty/sandy carbonate rocks within a system of interleaved, low-angle thrust and normal faults, overlain by an “upper plate” consisting primarily of limey sandstone. Oxidized, finely-disseminated gold mineralization has been discovered throughout the middle plate over an area of approximately 14 km2. The highest gold grades in drilling are associated with calcareous siltstone in proximity to large listric normal faults.