20 Dollars - Elizabeth II Nahanni National Park

Nahanni National Park Reserve in the Northwest Territories was granted UNESCO World Heritage status in 1978 — one of the first sites inscribed in the inaugural year of the program, and at the time covering roughly 4,700 square kilometers. In 2009, the protected area was expanded nearly tenfold, but this coin was struck three years before that political decision, commemorating the original boundary.

Part of the Royal Canadian Mint's ongoing national parks series, which ran through the mid-2000s with strict limited mintages targeting the collector market rather than circulation.