The region of the Silt occurrence is underlain by Paleogene granite stocks and Mid Cretaceous granite stocks.

In 2011, Brad Wilson owned the Silt claim and spent several days prospecting and sampling there. The most common rock type identified in the field was an orange weathering, coarse-grained biotite granite. The intrusion contains miarolitic cavities, rarely up to several tens of centimetres across. Also present are very course-grained pegmatitic zones or pods within the intrusion, up to a metre across.

Several vein-like features were found. These structures appear to be zones of alteration around a central quartz vein. These were identified as greisens or greisen-like veins. Veins are about 0.8 metre wide and can be seen in outcrop over a distance of tens of metres. At least two of these veins are indicated, but boulder-covering obscures the ground.

Three grab samples yielded significant results. MF-023 and 035 are grab rock samples from the greisen-like veins. Sample MF-023 assayed 0.59 per cent zinc and 2.4 grams per tonne silver (Assessment Report 33623). They consist of the central quartz vein along some of the altered dark gray, chloritic halo. Sample MF-014 taken from coarse-grained pegmatitic zone assayed 0.36 per cent zinc and 0.09 per cent beryllium (Assessment Report 33623).