Gold Ridge (mine)

Gold Ridge is a mine on Guadalcanal, Solomon Islands, about 30 km south east of the capital Honiara. The Gold Ridge mine was operated by Ross Mining N.L. and Delta Gold Ltd between 1998 and 2000 but had to be abandoned because of civil unrest. In 2003 it was acquired from the political risk insurers by Australian Solomons Gold. Allied Gold acquired the company in 2010 and subsequently rebuilt the mine. Production was restarted at the end of 2010.

At the end of August 2012, the assets of Allied Gold were acquired by St Barbara Limited, including Gold Ridge Mining Limited. St Barbara is an Australian-based gold mining company, with gold mines in the Yilgarn and Leonora Shires in Western Australia and the Simberi mine in the New Ireland Province of Papua New Guinea. The Gold Ridge mine was the only operating mine in the Solomon Islands at this time, and contributed approximately 20% of the Gross Domestic Product of the Solomon Islands economy.

In April 2014, St Barbara shut down the Gold Ridge mine following flash floods. St Barbara employees were subsequently banned by the Solomon Islands government from re-entering the country.

Gold Ridge was sold by St Barbara for A$100 to a landowner-controlled company GoldRidge Community Investment Limited (GCIL) in May 2015, including all legal and rehabilitation liability.

The Solomon Islands government's Disaster Management Council declared Gold Ridge a "disaster " area on July 7, 2015.

During 1568 a Spanish explorer named Álvaro de Mendaña de Neira found gold in the Gold Mine area near the mouth of the Matepona River. However, it was not until 1936 that the discovery was attributed back to the Gold Ridge area. This resulted in a number of attempts to work the area during the 1930s, before a prospecting licence was granted to the Balasuna Syndicate. The syndicate subsequently started hydraulic mining in the area during 1939, until World War 2 halted all work during 1942.

During 1950 the Solomon Islands Geological Survey was established, which led to the start of systematic surveys in the area. These surveys continued over the next 30 years, before modern exploration of the area subsequently started during 1983, after Amoco had successfully tendered for the rights to mine it. Cyprus Minerals brought the project during 1985 and farmed part of it in a joint venture with Arimco Mining. A feasibility study was subsequently completed during 1990 and updated during 1992, before the joint venture withdrew and allowed the leases to lapse.

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