Calibre Mining Corp., together with its subsidiaries, engages in the acquisition, exploration, and development of gold properties. It primarily explores for gold, silver, and copper deposits. The company holds 100% interests in the El Limon and La Libertad gold mines, the Pavon gold project, and other mineral concessions in Nicaragua, Central America; and the Eastern Borosi Gold-Silver project located in northeastern Nicaragua. It also holds 100% interests in the Pan Mine gold project and the Gold Rock project in Nevada, the United States, as well as the Golden Eagle project in Washington State, the United States. The company was formerly known as TLC Ventures Corp. and changed its name to Calibre Mining Corp. in June 2007. Calibre Mining Corp. was incorporated in 1969 and is headquartered in Vancouver, Canada.