OTTAWA, ONTARIO — (Marketwire) — 03/05/12 — Canadian Zinc Corporation (TSX: CZN)(OTCBB: CZICF) (the "Company" or "Canadian Zinc") and Parks Canada are pleased to announce a renewed Memorandum of Understanding ("MOU") regarding the operation and development of the Prairie Creek Mine and the management of Nahanni National Park Reserve.The Prairie Creek Mine is located in the Mackenzie Mountains of the Northwest Territories, within the watershed of the South Nahan
