This property is located on the southeast coast of Moresby Island about 0.3 kilometre east of the head of Huston Inlet between 91 and 259 metres elevation. In 1968 the property was held as the Plunger Nos. 1-4 by The Granby Mining Company Limited and is part of a large group held by Granby and Jedway Iron Ore Limited (see Jessie, 103B 026).
Apparently the showings were originally known as the Ivan Group which was discovered in 1908. The group consisted of three claims held by Messrs. I. Thompson, W. Mckinnon and A. Sivart. They worked the group until 1914, driving 21 metres of adit and doing surface work.
In 1962, Jedway Iron Ore Limited carried out 46 metres of packsack drilling on the property.
A 150 by 8-metre skarn with magnetite, pyrite and chalcopyrite occurs as a replacement of a northwest-trending shear zone in metasomatically altered greenstone of the Vancouver Group, Upper Triassic Karmutsen Formation near the contact with diorite of the Burnaby Island Plutonic Suite. Post-mineralization rhyolite and basalt dikes and minor limestone occur in the area.
About 100 metres north is a 15 by 9-metre magnetite garnet skarn.