Which one is closer to Yellowknife, Outpost Island Mine or Colomac Mine? 
Outpost Island Mine: The Outpost Island Mine was a gold and tungsten producer 94 kilometres southeast of Yellowknife, Northwest Territories on an island of Great Slave Lake. Colomac Mine: The Colomac Mine was a privately owned and operated open pit gold mine located 220 km northwest of Yellowknife in the Northwest Territories in Canada .
Outpost Island Mine