Pacific Ridge Exploration Ltd., an exploration stage company, acquires and explores for resource properties in Canada and the United States. The company primarily explores for gold and copper. Its flagship project is the Kliyul copper-gold project covering an area of approximately 6,000 hectares located in the northern Quesnel terrane, British Columbia. The company was formerly known as Columbia Gold Mines. Pacific Ridge Exploration Ltd. was incorporated in 1979 and is headquartered in Vancouver, Canada.