This showing is located about 0.9 kilometre southwest of Harriet Harbour between 442 and 488 metres elevation on the southeast coast of Moresby Island. The property consists of one Crown-granted claim, Lot 79, covering 38.03 acres. It was originally part of a large group held by J.S. McMillan (see Copper Queen, 103B 035).

The outcrop was discovered around 1906 by or for McMillan and was Crown-granted to him in 1911; it was originally known as Iron Mountain. Some stripping was done and a 7-metre adit was driven about 1908. Little further work was done until Silver Standard Mines Limited optioned the property in 1956. In the fall of 1959, 22 EX holes totalling 467 metres were drilled. Geophysical work was also done. Reserves have been estimated at 161,478 to 453,592 tonnes averaging 60 per cent magnetic iron.

The property was acquired in 1961 by Jedway Iron Ores Limited as a result of part of an agreement between The Granby Mining Company Limited and Silver Standard Mines Limited.

A lensoid body of massive magnetite replaces greenstone and pillowed greenstones of the Upper Triassic Karmutsen Formation (Vancouver Group) and minor limestone of the overlying Upper Triassic Sadler Formation (Kunga Group). The strata strike north and dip 20 to 35 degrees west. Fine diorite porphyry dikes cut the limestone and quartz diorite of the Jedway Stock intrudes these stratified rocks to the east. The Jedway Stock is part of the Middle to Late Jurassic Burnaby Island Plutonic Suite. A moderate size fault, striking about 125 degrees, either cuts the downdip part or localizes the mineralized body.

The mineralized body, measuring 110 by 55 by 6 metres, consists of massive magnetite with pods of garnetite and remnants of epidotized volcanic rocks. Along the western margin minor pyrite, chalcopyrite and trace sphalerite are reported.

In 1959, indicated reserves were 161,480 tonnes averaging 60.0 per cent iron as magnetite (Bulletin 54, page 209); and inferred reserves were 453,590 tonnes averaging 60.0 per cent iron as magnetite (Energy, Mines and Resources Reserves File - Magnet).