The Norway Crown Grant is underlain by a stock of the Middle to Late Jurassic Nelson Intrusions comprised of a granodiorite to quartz diorite. The stock intrudes the Lower Jurassic Elise Formation, Rossland Group comprised of altered siltstone, hornfelsed siltstone, conglomerate, and breccia. These rocks are also intruded by a stock of Early Jurassic Rossland monzonite (recently dated at 190 million years) comprised of a mass of biotite-hornblende-augite monzonite (Andrew, K.P.E., Personal Communication, 1991).
Mineralization on the Norway consists of a quartz vein in the Nelson granitic rocks which hosts gold in places. In 1929, the quartz vein which ranged up to 0.9 metres in width was developed by two adits. The upper adit is about 61 metres in length, while the lower adit followed the vein for some 15 to 18 metres.
In 1936, one tonne of ore was shipped and 156 grams of silver were recovered.