The Dixie target is along a north-south horst of Pennsylvanian age conglomerate, siltstone and bioclastic limestone. The horst is bounded on the east and west sides by moderate to high-angle normal faults. Carlin-style alteration along with quartz porphyry dikes and sills are developed internal to the horst. This north-south structural corridor that focusses hydrothermal alteration and igneous intrusions is known as the Dark Star structural corridor. The structural corridor extends from the Dark Star deposit in the north to the Dixie area in the south.