The Myrinda occurrence is situated on Fall River, midway between Akus and Kelly lakes, approximately 31 kilometres north-northeast of Takla Landing.

The Fall River area is underlain by intercalated volcanic and sedimentary members of the Carboniferous to Jurassic Cache Creek Complex. In the area of the showing, these members include andesitic flows and tuff, schist, phyllite, cherty argillite, and minor limestone and generally strike north to northwest with steep dips. Locally serpentinized ultramafic rocks formerly assigned to the Middle Permian to Late Triassic Trembleur intrusions and now termed Mississippian to Triassic Oceanic Ultramafites, intrude the Cache Creek Complex rocks to the west (Geological Survey of Canada Paper 74-1, Part A, page 32).

The showing is exposed on the north side of the Fall River forestry access road and consists of a 24-metre long lens of nephrite jade occurring where underlying serpentinite is in contact with "country rock" (likely Cache Creek Complex members). Diamond drilling undertaken in three, 1-metre holes determined that the jade was of very low quality, being badly fractured, a blue-grey colour and of limited thickness (Assessment Report 15273, page 3). Additional occurrences of jade were located in the area which were thought to hold better potential.

In 1983 and 1984, Golden Porphyrite Ltd. completed geological and geochemical surveys on the Akus Lake property to the southwest of the occurrence. Anomalous silver zones were found in five areas on the property, with a high of 2.7 parts per million silver (Assessment Report 12550). Two slightly anomalous gold zones were identified during soil sampling on the property. The zones are between 5 and 8 kilometres south of the Myrinda occurrence.

In 2015, Jedway Enterprises Ltd. completed a small prospecting program on the property containing the occurrence. Grab samples and chip samples found in nine locations on the property were described in detail.