DEEP in the jungle of North Kivu, a lawless province in the Democratic Republic of Congo, a new road is being cut through the canopy. As birds chirp, hand saws cut noisily through trees. Men with shovels dig out roots and flatten the ochre-red earth.
A sturdy new log bridge crosses a stream. On it stands Boris Kamstra, a South African in a plaid shirt and bucket hat. “This is great road-building material,” he booms, gesturing at the stones.
Mr Kamstra is the boss of Alphamin Resources, a Canadian-funded company that is trying to build perhaps the most improbable mine in Africa. The site, on a hill called Bisie, is about 60km (37 miles) from the nearest settlement of any size, a town called Walikale.