We have added an extension idea to our 'Riches in the river´. It is an excellent website which consists of an interactive game where students see how “rich” they can become by mining a gold placer deposit in the Yukon, Canada. The game itself will suit older students, but even without playing the game, the pictures on the background sheet are brilliant. The site is freely available and is described in Teaching Earth Sciences Vol. 35, No. 2, 2010.All the key elements of mining are illustrated in this photograph above of a large mine on the lower Indian River, Yukon.
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