The Emerald Alley occurrence is located on a westerly ridge of Meridian Mountain, approximately 3.4 kilometres east of the junction of the Little Swift and Swift rivers.

The area is underlain by graphitic schist and phyllite of the Cambrian Snowshoe Group, argillite, shale and tuff of the (Upper Triassic and Lower Jurassic) Takla Group and serpentine and serpentinized ultramafic rocks. The rocks have north westerly trending foliation and are faulted in places.

Locally, a quartz-tourmaline pegmatite vein hosts large quartz crystals with face widths from 10 to 30 centimetres and plagioclase feldspar crystals of reported “gem” quality (Assessment Report 33212).

In 2012, North Minerals Star Exploration completed a program of prospecting, rock sampling and one trench, totalling 5 metres.