The area is underlain by Devonian to Permian Knob Hill Group rocks. Limestone outcrop shows skarn minerals with pyrite and minor chalcopyrite. A diamond-drill hole at this location showed alternating limestone and trachite flows, a number of quartz-carbonate veins, some serpentinite and much disseminated pyrite.

In 1965, Scurry Rainbow Oil Ltd. conducted a series of geophysical surveys including, airborne magnetics (111.2 kilometres), ground electromagnetics (3.1 kilometres), ground magnetics (2.9 kilometres), self potential (0.9 kilometre) and I.P (56.4 kilometres). They followed this up by taking 327 soil samples and drilling 1 BQ hole totaling 417.6 metres.

Scurry Rainbow held two blocks of PP claims in 1965, one on July Creek and the other on Bondary Creek near its confluence with Windfall Creek. The diamond drill hole mentioned here is for the Boundary Creek location.