Gros Morne National Park

Lore & Background

The park's geology was made famous by Robert Stevens and Harold Williams. Its rock formations include oceanic crust and mantle rock exposed by obduction, along with sedimentary rock from the Ordovician, Precambrian granite, and Palaeozoic igneous rocks. The Global Boundary Stratotype Section and Point (GSSP) for the Tremadocian stage and the entire Ordovician system is defined at Green Point within the park. The Tablelands, between Trout River and Woody Point, consist of ultramafic rocks—peridotite and serpentinite—thought to originate in the Earth's mantle, forced up during a plate collision hundreds of millions of years ago. These rocks lack nutrients for most plant life, giving the area a barren, rust-colored appearance.

Reader's Guide

Gros Morne National Park is significant for its unparalleled geological exposure that advanced the understanding of plate tectonics. The park's rocks, including the Mohorovičić discontinuity, were included in the International Union of Geological Sciences' 100 'geological heritage sites' in 2022. Its landscapes range from fjords like Western Brook Pond—a freshwater fjord carved by glaciers—to alpine areas and coastal habitats. The park supports diverse wildlife, including eastern moose at densities five to 20 times higher than comparable Canadian areas, Newfoundland caribou, black bears, Canada lynx, and marine mammals such as harbour seals and several whale species. Hiking is popular, with about 20 marked day trails, including the strenuous 16 km James Callaghan Trail over Gros Morne Mountain. The park also hosts arts festivals like the Gros Morne Theatre Festival and Writers at Woody Point.

Did You Know?

• The park's name 'Gros Morne' is French for 'large mountain standing alone' or 'great sombre'.
• Pissing Mare Falls, the highest waterfall in eastern North America, flows into Western Brook Pond.
• The Tablelands' ultramafic rocks are high in iron, giving them a brownish, rusted color; unweathered rock is dark green.

The UNESCO Framework Behind the Park

The World Heritage Convention, established by UNESCO in 1972, created a global mechanism for recognizing places of outstanding cultural or natural significance. Under this framework, cultural heritage encompasses architectural works, monumental sculptures, inscriptions, groups of buildings, and archaeological sites. Natural heritage, by contrast, covers physical and biological formations, geological and physiographical features, habitats supporting threatened species of flora and fauna, and landscapes valued for their scientific importance, conservation value, or inherent beauty. Canada formally accepted the convention on 23 July 1976, committing the nation to identify and protect such places within its borders. This international agreement provides the legal and philosophical foundation upon which sites in Canada's national parks are evaluated, nominated, and ultimately inscribed on the World Heritage List, connecting local landscapes to a worldwide community of shared heritage.

Canada's World Heritage Portfolio

As of the latest inscriptions, Canada holds twenty-two World Heritage Sites, with an additional ten properties awaiting potential nomination on the country's tentative list. The nation's first two entries—L'Anse aux Meadows and Nahanni National Park Reserve—were added at the Second Session of the World Heritage Committee, held in Washington, D.C., in 1978. The most recent additions, Tr'ondëk-Klondike and Anticosti, joined the list in 2023, demonstrating that Canada's heritage portfolio continues to grow. Of the twenty-two inscribed sites, ten are recognized for cultural significance, eleven for natural significance, and one, Pimachiowin Aki, holds the distinction of being listed under both categories. Two Canadian sites are shared with the United States, reflecting cross-border heritage values. This diverse collection spans millennia of human history and a wide range of natural environments, from coastal archaeological sites to vast wilderness reserves.

The Path to Inscription: Criteria and Nomination

UNESCO evaluates World Heritage nominations against ten specific criteria, split into two groups: criteria i through vi address cultural significance, while criteria vii through x address natural significance. A site must satisfy at least one of these criteria to qualify for inscription. Beyond meeting a criterion, the process requires that a property first appear on its country's tentative list before a formal nomination can be submitted. Canada maintains ten properties on its tentative list, representing candidates that may one day join the inscribed roster. This two-step pathway—tentative listing followed by full nomination—ensures that countries carefully consider which sites best represent their heritage before bringing them before the international committee. For a site to succeed, it must demonstrate outstanding universal value under at least one criterion, whether that value lies in its geological formations, its role as habitat for threatened species, its scientific importance, or its cultural and architectural legacy.

Canada's Role in Global Heritage Governance

Canada has not only been a beneficiary of the World Heritage system but also an active participant in its governance. The country has served as a member of the World Heritage Committee on four separate occasions: 1976–1978, 1985–1991, 1995–2001, and 2005–2009. During these periods, Canadian representatives helped shape the decisions that determine which sites around the world receive the highest international recognition. This committee service reflects Canada's sustained commitment to the convention it accepted in 1976 and its willingness to contribute to the global dialogue on heritage preservation. Beyond the World Heritage framework itself, Canada's heritage landscape intersects with other international designations, including Biosphere Reserves, and with domestic programs such as the National Historic Sites designation. Together, these overlapping systems create a layered architecture of protection, ensuring that places of significance—whether valued for their natural beauty, scientific importance, or cultural legacy—receive recognition at multiple levels of governance.