The Donlin Gold Project is a large, undeveloped, refractory gold deposit located 12 miles (19 km) north of Crooked Creek, Alaska on the Kuskokwim River, about 280 miles (450 km) northwest of Anchorage. The deposit has proven and probable reserves estimated to be 33.9 million ounces of gold at a grade of 2.1 g/t and could produce an average of one million ounces annually over a 27-year mine life. From Wikipedia