Pacific Ridge Exploration Ltd., an exploration stage company, engages in the acquisition and exploration of resource properties in Canada and the United States. The firm primarily explores for gold, zinc, and other base metal deposits. It holds interest in the Mariposa property covering an area located in Yukon, Canada. The firm also holds an option agreement to acquire the TL zinc property located in Vernon, British Columbia; and the RC and Bee gold properties located in the Dawson and Mayo Mining Districts, Yukon, Canada. The company was founded by John Sebastian Brock in 1977 and is headquartered in Vancouver, Canada.