The region is underlain by (?)Hadrynian to Paleozoic Snowshoe Group rocks. The Snowshoe Group is an assemblage of dominantly metasedimentary rocks within the Barkerville Terrane of south-central British Columbia. These metasedimentary rocks consist primarily of marble, quartzite and phyllite. In the Yanks Peak area these rocks comprise the Keithley and Harveys Ridge successions, but further to the east they remain undifferentiated. Metamorphism of the region varies from chlorite to sillimanite and higher grade. Gold-bearing quartz veins occur only in greenschist facies rocks.

The Taylor Tungsten quartz veining is essentially a continuation of the zone in which the Hebson vein (093A 101) occurs. Scheelite was discovered by B.E. Taylor, of Wells, about 305 metres north of the underground workings on the Hebson vein. The Taylor Tungsten showing is at 1798 metres elevation on ground sloping gently westward into the head of McMartin Creek. The quartz-scheelite vein occupies a fault zone crosscutting quartzite, and strikes 120 degrees dipping 75 degrees to the southwest. The vein cuts fissile quartzites and sericite schists that strike 165 degrees and dip 50 degrees southwestward. The veins are about 213 metres west of the axis of an anticlinal septum of black silty quartzite, the Breakneck anticline, which encloses the Hebson vein. The Snowshoe Group rocks lie in a northwesterly plunging syncline whose axial plane is about 457 metres west of the workings on the Taylor veins. The workings consist of two trenches and a shaft. The shaft is in the middle of the Number 1 trench, and is 1.8 metres in diameter and 1.8 metres deep. Elsewhere two pits have been dug. Scheelite was seen only in the Number 1 trench; crystals of scheelite have been oxidized to tungstite and stolzite. The veins also contain galena, sphalerite, pyrite and marcasite.

In 1940, the workings were examined by Stevenson at a time when new work had been done. Two new pits were sunk 3 metres and 2.4 metres respectively, on the main tungsten showings and it was understood that an adit was started late in the season of 1942 to get under these showings. However, the work has so far failed to disclose additional ore. The adit was driven 27 metres but did not cross any tungsten-bearing vein and it was abandoned at that point and no further work has been done (Bulletin 10, Revised). A chip sample taken over a 10 centimetre width and a 1.2 metre length assayed 26.20 percent tungsten (Property File - Stevenson, J.S., 1943).