The area is underlain by Lower Cretaceous Skeena Group sediments (Kitsun Creek Formation). Locally, a Late Cretaceous to Eocene granodioritic stock and associated quartz-feldspar porphyry dikes intrude the Skeena Group rocks. Selective biotite-hornfelsing is widespread as well as abundant disseminated pyrite. The stock exhibits propylitic alteration, mainly sericite, silica, minor epi- dote, chlorite and kaolinite.

Molybdenite and minor chalcopyrite occur on dry fractures and in quartz veinlets within the intrusive, associated porphyry dikes and in the hornfels.

Surrounding the molybdenum-copper core zone at a lower elevation and northwest of it are a series of quartz veins which host pyrite and chalcopyrite (refer to 093L 135 - Reiseter Creek) and veins which host stibnite with varying amounts of sphalerite, galena and chalcopyrite (refer to 093L 134 - Reiseter).

The vicinity of the Reiseter 5 was also prospected in 2011 but only slumped trenches were found. The Reiseter 5 and the Reiseter 4 (093L 134) are contained within a geochemically anomalous soil zone developed in the mid-2000s to 2011. By 2011, the main Reiseter anomalous zone was defined by MMI soil geochemical sampling and found to have dimensions with a minimum of 1200 meters in a westerly direction by 800 meters in a northerly direction. The recent work has shown the strike to be west-northwesterly with it being open to the west-northwest. It is a polymetallic anomaly with anomalous values mainly in molybdenum, arsenic, zinc, lead, silver, gold, cadmium, and copper.

The vicinity of the Reiseter 5 was also prospected in 2011 but only slumped trenches were found. The Reiseter 5 and the Reiseter 4 (093L 134) are contained within MMI soil grid area.

Refer to Reiseter 4 (093L 134) for further details of the Reiseter property of which the Reiseter 5 is part of.