The area of the PBE 64 occurrence is underlain by undivided sedimentary rocks of the Triassic Brooklyn Formation and Devonian to Permian rocks of the Knob Hill Group. These are intruded by dikes, sills and plutons of the Eocene Coryell Plutonic Suite which are syenitic to monzonitic in composition. The Paleozoic rocks, consist primarily of greenstone, chert, argillite and limestone.

Heavy magnetite and sulphides occur at a limestone-syenite contact. An old shaft is located about 25 metres north of the showing and an adit is about 65 metres to the north of the showing. A sample yielded 0.07 per cent copper; molybdenum was less than 0.001 per cent (Assessment Report 3172, Map 17). Gold and silver values were not significant. While molybdenum values were low, the symbol for molybdenum is the only one that is indicated beside the Showing 9 desigination on maps 2 and 3 (Assessment Report 3172).

In 1970 or just prior thereto, Boundary Exploration Limited conducted trenching on their SD claims. In 1971, Cronus Minerals Limited conducted an airborne magnetometer and scintillometer survey over their SD and PBE claims. In 1977, Consolidated Boundary Exploration Ltd. conducted mapping and collected 4 samples on the U2 claims which covered the old PBE occurrences such as MINFILE 082ESE138, 139, 140, 218 and 219. In 1978, Consolidated Boundary conducted a program of stripping, and rock and soil sampling (103 soils). They also conducted 4 kilometres of ground magnetometer and scintillometer surveying.

During 2008 through 2012, Grizzly Discoveries Inc. completed programs of geochemical sampling, geological mapping and ground geophysical surveys on the area as the Attwood area of the Greenwood property.