The Foulger Creek (Boulder Creek) showing is located on the north arm of Foulger Creek, approximately 1.2 kilometres northwest of the creek mouth on the west side of Howe Sound.

The area is predominantly underlain by quartz diorite of the Cenozoic-Mesozoic Coast Plutonic Complex, which contains a small pendant of Lower Cretaceous Gambier Group volcano-sedimentary rocks.

Locally, a small quartz vein occurs close to, and appears to be cut off by, a fault. The vein is mineralized with molybdenite and pyrite and strikes 105 degrees with a 45 degree dip to the south. Other small quartz veins and aplite dykes are also evident and are cut off by the fault. Visual observations are reported to estimate an average of 2 per cent molybdenite over 0.3 metre (Assessment Report 288).

In 1958, Sound Copper Syndicate completed a geological mapping program on the area as the Sound claims. In 1981, Raft Mines completed a program of rock sampling, trenching and an air photo fracture density analysis on the area immediately to the south as the Clare claim. In 1984, Black Queen Resources completed a 55.2 line-kilometre airborne geophysical survey on the area as the Doyle 1-2 claims. In 1986, Fontana Resources completed a program of rock and soil sampling, geological mapping and a ground magnetometer survey on the area.