The headwaters of the Nahanni River in the Northwest Territories have been temporarily protected to enable the creation of a new national park, Nááts'ihch'oh (pronounced naah-tseen-CHO). This park, to be established in collaboration with local Aboriginal peoples of the Sahtu region, will protect a critical part of the South Nahanni Watershed – a globally renowned wilderness area – and will complement ongoing work to expand the Nahanni National Park Reserve. Nááts'ihch'oh covers 20% of the South Nahanni Watershed and includes key calving grounds for woodland caribou and grizzly bears, which need large intact ecosystems to survive.