Meanwhile, the Dutch had tried in 1654 to directly control the mining of gold by building Fort Ruychaver far inland on the Ankobra River, but had left gold production to the locals since that fort was attacked and burned to the ground in 1660. The supply of gold declined dramatically at the turn of the eighteenth century, due to tribal warfare among the people of the Gold Coast. While the Ashanti succeeded in the Battle of Feyiase of 1701 to establish their hegemony on the Gold Coast, it took them a few years to fully "pacify" their newly conquered territory. 1701 proved to be the historic low for the gold trade, with only 530 mark of gold exported, worth 178.080 guilders.