The Taylor-Windfall polymetallic vein prospect is on the southeast side of Battlement Creek 1 kilometre above its junction with Taseko River, approximately 142 kilometres southwest of Williams Lake, B.C.

The prospect is within dacitic and andesitic tuffs, and various volcanic sedimentary rocks and volcanic breccias of the Upper Cretaceous Powell Creek Formation. Most tuffaceous lithic and vitric andesites are propylitically altered and silicified.

E.J. Taylor first discovered gold in eluvium on the bank of Battlement Creek in 1920. The gold was present as coarse angular crystalline fragments and sponge-like particles in a loose decomposed matrix which included detached crystals of quartz, tourmaline, rutile, pyrite and fragments of silicified tuff. Gold was removed by panning and the use of arrastre. Exploration beneath the surficial deposits failed to find mineralized bedrock.

Subsequent exploration in the area outlined two veins of interest: a tourmaline-rich vein and a sulphide-rich vein. The tourmaline vein is 10 to 20 centimetres wide along a strike length of at least 100 metres; the vein pinches, swells and bifurcates along its length. The vein consists of tourmaline, chlorite, pyrite, tennantite, sphalerite and chalcopyrite, with lesser galena, tetradymite, native gold and enargite. The main sulphide vein is 20 centimetres wide along a strike length of 20 metres (the vein has been mostly mined out). The sulphide vein mineralogy is similar to that of the tourmaline vein but contains a greater proportion of sphalerite, tennantite, and contains coarse siderite.

Vein introduction was accompanied by a high temperature hydrothermal event which saw the formation of corundum andalusite quartz. Retrograde reactions are responsible for chloritization of tourmaline and alteration of most of the aluminosilicate mineral content to sericite. Later, advanced argillic alteration is marked by large volumes of sericite altered to an assemblage of mainly kaolinite and dickite, with lesser alunite, dumortierite, diaspore and gibbsite.

Both veins are accessed by the 1648 metre level of the underground workings. Production records show that 555 tonnes of ore were mined in 5 years between 1932 and 1953, inclusive; 454 tonnes of this were mined in 1935. Recovered from this ore were 14,525 grams of gold and 156 grams of silver.

During 2014 through 2019, Amarc Resources Ltd. completed programs of geological mapping, geochemical (talus fines, rock chip and stream sediment) sampling, 163.6 line-kilometres of induced polarization surveys, 1069 line-kilometres of airborne magnetic surveys and 18 157 metres of diamond drilling on the area as part of the IKE project. The majority of the drilling (15 455.34 metres in 26 holes) was completed on the IKE (MINFILE 092O 025) occurrence. The TAYLOR-WINDFALL prospect lies within Amarc's Empress high-grade copper-gold-silver deposit area (PR REL Jan 19, 2021).