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Porgera Mine, Mt Kare Valley, Mt Hagen, Enga Province, Papua New Guinea

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Latitude & Longitude (WGS84): 5° 30' South , 143° 0' East
Latitude & Longitude (decimal): -5.50000,143.00000
Köppen climate type:Af : Tropical rainforest climate

A gold mine. Porgera was initially an underground operation, with open-pit mining becoming increasingly important from 1993 onwards. Underground production ceased in 1997 but was resumed in 2002. In 2005, 11% of the mine’s output came from underground, with the remainder sourced from open pits and low-grade ore stockpiles.
It is the second largest mine in Papua New Guinea and is regarded as one of the world's top ten producing gold mines.

Located at the head of the Porgera Valley, in rain forest covered highlands at an altitude of 2,200 to 2,700 m.

Mesothermal(-epithermal) style orebody hosted within thermally metamorphosed sediments of the Cretaceous.

Mineral List

19 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

66 - 252.17 Ma

ID: 1382362
Mesozoic sedimentary rocks

Age: Mesozoic (66 - 252.17 Ma)

Lithology: Sedimentary rocks

Reference: Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d. [18]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Richards, J.P. (1990) Petrology and geochemistry of alkali intrusives at the Porgera gold deposit, Papua New Guinea. Journal of Geochemical Exploration: 45: 141-199.

Richards, J.P., McCulloch, M.T., Chappell, B.W., and Kerrich, R. (1991) Sources of metals in the Porgera gold deposit, Papua New Guinea: evidence from alteration, isotope, and noble metal geochemistry. Geochimica et Cosmochimica Acta, 55 (2): 565-580.

Richards, J.P. and Ledlie, I. (1993) Alkalic intrusive rocks associated with the Mount Kare gold deposit, Papua New Guinea; comparison with the Porgera intrusive complex. Economic Geology (1993) 88 (4): 755-781.

Richards, J.P. and Kerrich, R. (1993) The Porgera gold mine, Papua New Guinea; Magmatic hydrothermal to epithermal evolution of an alkali-type precious metal deposit. Economic Geology: 88 (5): 1017-1052.

Richards, J.P., Bray, C.J., Channer, D.M.DeR., and Spooner, E.T.C. (1997) Fluid chemistry and processes at the Porgera gold deposit, Papua New Guinea. Mineralium Deposita 32: 119-132.

Ronacher, E., Richards, J.P., and Johnston, M.D. (2000) Evidence for fluid phase separation in high-grade ore zones at the Porgera gold deposit, Papua New Guinea. Mineralium Deposita 35: 683-688.

External Links [Akuila Tawake (2012) Mineral Resources Potential and Mining in the Pacific Islands Region - Lessons Learned. Pacific-ACP States Regional Training Workshop on Geological, Technological, Biological and Environmental Aspects of Deep Sea Minerals. Tanoa International Hotel, Nadi Fiji. 13th–17th August 2012]

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