Table of Contents
The coastal fjords of Newfoundland and Labrador represent some of the most spectacular geological formations in North America, combining dramatic landscapes with extraordinarily productive marine ecosystems. These deep valleys were carved through mountains by massive glaciers and later flooded by the sea, creating the steep-sided inlets that define the region’s coastline today. From the towering cliffs of Gros Morne National Park to the remote fjords of the Torngat Mountains in northern Labrador, these ancient waterways continue to shape the environment, support diverse wildlife, and provide critical habitats for countless marine species.
The Glacial Origins of Newfoundland and Labrador’s Fjords
At the Last Glacial Maximum around 21,000 years ago, Québec-Labrador and its adjacent continental margins were covered by the Laurentide Ice Sheet, a massive expanse of ice that fundamentally transformed the landscape. The immense weight and movement of these glaciers created the foundation for the fjords we see today.
The Process of Glacial Carving
Glaciers had an enormous effect on the landscape, smoothing and polishing wide areas, eroding lake basins, and carving deep valleys through mountains. The process of fjord formation began as these massive ice sheets moved slowly across the terrain, following existing river valleys and fault lines. The tremendous pressure and abrasive power of the ice, combined with embedded rocks and debris, scoured the bedrock beneath, creating U-shaped valleys with steep sides and flat bottoms.
The depth and extent of glacial erosion varied depending on several factors, including the thickness of the ice, the speed of glacial movement, and the resistance of the underlying bedrock. In some areas, glaciers carved valleys more than 600 meters deep, creating the dramatic vertical cliffs that characterize many of Newfoundland and Labrador’s most famous fjords.
Post-Glacial Transformation
As global temperatures rose and the ice age ended, the glaciers began their retreat. Along the coast, these valleys were later flooded by the sea, creating deep fjords. This flooding occurred through a complex process involving both rising sea levels from melting ice worldwide and changes in the land elevation itself.
Sea level around the coast of Newfoundland and Labrador changed considerably as a result of the last glaciation, with ice sheets of great weight pushing land areas downward and squeezing them outwards beyond the ice margin, before the land rebounded as the ice melted. This phenomenon, known as isostatic rebound, continues to affect the region today. The coast of Labrador continues to rise as the land rebounds, but much of the Newfoundland coast is sinking as displaced material is returned and the land settles.
Unique Cases: Landlocked Fjords
Not all glacially-carved valleys in the region remain connected to the sea. Western Brook Pond was carved by glaciers between 25,000 and 10,000 years ago and was once likely a sea fjord until the land rebounded after the glacial retreat. After the glaciers melted, the land rebounded and the fjord was cut off from the sea, with salty water eventually flushed from the fjord leaving it fresh.
Western Brook Pond and Trout River Big Pond in Newfoundland’s Gros Morne National Park are often described as fjords, but are actually freshwater lakes cut off from the sea, so are not fjords in the English sense of the term, and such lakes are sometimes called “fjord lakes”. Despite their freshwater status, these landlocked fjords retain the dramatic geological features characteristic of true fjords, including towering cliffs and deep basins.
Major Fjord Systems of Newfoundland and Labrador
The province contains numerous fjord systems, each with distinctive characteristics shaped by local geology and glacial history. These fjords range from accessible tourist destinations to remote wilderness areas that remain largely unexplored.
Gros Morne National Park Fjords
Soaring fjords and moody mountains tower above a diverse panorama of beaches and bogs, forests and barren cliffs in Gros Morne, where the ancient landscape shaped by colliding continents and grinding glaciers is a UNESCO World Heritage Site. The park, located on the west coast of Newfoundland, contains several spectacular fjord features.
Western Brook Pond stands as one of the park’s most iconic features. It is surrounded by steep rock walls 600 meters high, having been carved from the surrounding plateau by glaciers. The pure waters of the lake reach depths of 540 feet and stretch over 9 miles, and are home to various fish species, like Atlantic salmon and Arctic char.
Pissing Mare Falls at 350 meters high is one of the highest waterfalls in eastern North America, cascading into Western Brook Pond from the plateau above. Bonne Bay in Gros Morne National Park is also located along the coastline of the island of Newfoundland, providing another example of the region’s fjord geography.
Northern Labrador Fjords
The Torngat Mountains of northern Labrador contain some of the finest examples of alpine glacial landforms in Canada. This remote region hosts some of the province’s most dramatic and least accessible fjords.
Saglek Fiord, Nachvak Fiord, and Hebron Fiord are located in Labrador. Sub-bottom profiles reveal that both Nachvak and Saglek fjords contain a deglacial sequence thicker than 100 meters, including important mass-movement deposits reaching thicknesses of 40 meters, demonstrating the complex geological processes that shaped these waterways.
Anaktalak Bay, Saglek Fiord and Nachvak Fiord off the coast of Newfoundland and Labrador are being studied for environmental changes due to global warming, making them important sites for climate change research.
South Coast Fjords
The southwest coast of Newfoundland, stretching from Hermitage Bay to Cape Ray, is marked by towering granite cliffs and deep, glacially-carved fjords. The South Coast Fjords area is among the most productive marine environments in Atlantic Canada and is economically, culturally, and historically important to the region’s Indigenous and coastal communities.
The area is a biodiversity hotspot due to its wide array of coastal and marine ecosystems including spruce-fir forests, rocky barrens, sand dunes, flat sandy beaches, estuaries, large granite cliffs and deep, glacially carved fjords. This area is home to Newfoundland’s largest tides, and in the Bay d’Espoir region, seaweeds exhibit an exceptionally high diversity, particularly within the intertidal zone.
Geological Characteristics and Features
The fjords of Newfoundland and Labrador exhibit distinctive geological features that make them valuable for scientific study and contribute to their visual drama.
Bedrock Composition and Structure
Labrador is the easternmost part of the Canadian Shield, a vast area made up mostly of plutonic and metamorphic rocks, some of which are the oldest known on Earth. This ancient bedrock provides the foundation for the region’s fjords and influences their characteristics.
Gros Morne provides a rare example of the process of continental drift, where deep ocean crust and the rocks of the earth’s mantle lie exposed. The rocks of Gros Morne National Park collectively present an internationally significant illustration of the process of continental drift along the eastern coast of North America and contribute greatly to the body of knowledge and understanding of plate tectonics and the geological evolution of ancient mountain belts.
Topographical Complexity
The topography of the bay is complex, with irregularities due to estuaries, sedimentary bars, mountainside slumping, hard bedrock outcrops, boulder fields and rock slides. This complexity creates a variety of microhabitats that support diverse ecological communities.
More recent glacial action has resulted in some spectacular scenery, with coastal lowland, alpine plateau, fjords, glacial valleys, sheer cliffs, waterfalls and many pristine lakes. The interaction between these various landscape features creates the distinctive character of each fjord system.
Water Characteristics
The water chemistry and physical properties of fjords vary considerably depending on their connection to the ocean and their catchment areas. The catchment area of Western Brook Pond is composed of igneous rock with relatively thin soil, so the waters feeding Western Brook Pond are low in nutrients and the lake is classified as ultraoligotrophic.
In contrast, marine-connected fjords exhibit different characteristics. The stratification of seawater, and the convergence of the northern limits of boreal and temperate species and the southern limits of Arctic species result in high species diversity in many of the region’s fjords.
Marine Ecosystems and Biodiversity
The fjords of Newfoundland and Labrador support remarkably diverse and productive marine ecosystems, serving as critical habitat for numerous species and playing a vital role in the broader Atlantic marine environment.
Ecological Significance
The marine environment of Gros Morne is considered important by biologists for its variety of habitats and for having the highest biodiversity in Newfoundland. The South Coast Fjords area is an ecologically rich marine environment and productive marine ecosystem and biodiversity hotspot, amongst the most productive marine environments in Atlantic Canada and home to some of the largest tides in Newfoundland.
These fjords create a network of sheltered inlets, offering critical habitats for a diverse range of marine species. The protected waters, steep underwater topography, and mixing of different water masses create ideal conditions for marine life to thrive.
Marine Mammals
The fjords and surrounding waters host an impressive array of marine mammals. The coasts and waters are home to dolphins, porpoises, and many endangered species including Atlantic cod, redfish, leatherback sea turtles and piping plovers and serve as a critical migration route for over 20 species of whales.
The area is a haven for species like blue, humpback, fin and killer whales in the winter and leatherback sea turtles in the summer. Newfoundland and Labrador’s waters are home to a variety of whale species, including humpback whales, minke whales and orcas, and whale watching is a popular activity in the region.
Harbor seals, gray seals and harp seals are common along the coastline and often gather on ice floes during the winter months, and these marine mammals play a vital role in the local ecosystem. The steep cliffs and sheltered waters create ideal nesting sites for seabirds while offering safe breeding grounds for seals.
Fish Populations
The rich nutrients found in these waters attract a variety of fish species, making fjords essential for both marine life and human fishing industries. The fjords support both commercial and recreational fisheries, though sustainable management remains crucial for long-term viability.
The diversity of fish species reflects the varied habitats within fjord systems, from shallow nearshore areas to deep basins. Cold-water species dominate, adapted to the frigid temperatures characteristic of these northern waters.
Seabirds and Coastal Wildlife
Newfoundland and Labrador is known as the ‘Seabird Crossroads of the World’, hosting millions of migratory seabirds every year. The fjord cliffs provide essential nesting habitat for numerous seabird species.
The province is a paradise for bird enthusiasts, serving as a crucial stopover for migratory birds traveling between North and South America, where birdwatchers can spot species such as the bald eagle, osprey, and various species of warblers and waterfowl.
Primary Productivity and Food Webs
Magnetic properties reflecting enhanced bottom oxygen consumption reveal a high primary productivity from 6,300 to 3,800 years ago in Saglek and Nachvak main basins, and at about 6,300 years ago, a regional environmental change enhanced primary productivity and bottom oxygen consumption in both fjords. This historical productivity demonstrates the long-term ecological importance of these systems.
The complex food webs within fjord ecosystems begin with phytoplankton and other primary producers, supporting zooplankton, fish, seabirds, and marine mammals. The sheltered nature of fjords allows for the accumulation of nutrients and organic matter, supporting these productive ecosystems.
Climate and Weather Influences
The unique topography of fjords significantly influences local climate and weather patterns, creating microclimates distinct from surrounding areas.
Temperature Regulation
The deep waters of fjords moderate temperature extremes, while the steep valley walls can trap cold air or create wind tunnels. The orientation of fjords relative to prevailing winds affects local weather patterns, with some fjords experiencing calmer conditions than exposed coastal areas.
Precipitation Patterns
The high cliffs surrounding fjords force air masses upward, often resulting in increased precipitation on windward slopes. This orographic effect contributes to the formation of waterfalls and maintains the flow of freshwater into fjord systems.
Ice Formation and Dynamics
During winter months, some fjords experience ice formation, though the extent varies depending on salinity, depth, and exposure to ocean currents. The presence or absence of ice affects marine ecosystems and influences the distribution of wildlife.
Human History and Cultural Significance
The fjords of Newfoundland and Labrador have supported human communities for thousands of years, serving as highways for transportation, sources of food, and places of cultural importance.
Indigenous Heritage
In the province of Newfoundland and Labrador, the South Coast Fjords area is among the most productive marine environments in Atlantic Canada, and among the priorities of the Miawpukek First Nation and Qalipu First Nation is to protect these economically, culturally, and historically valuable lands and waters that supported their ancestors and still support their way of life.
Storytelling teaches that the South Coast Fjords is where First Nations communities lived in the past, and the lands and waters here are their identity and where they come from. The Sandbanks and South Coast Fjords study areas include many archaeological sites of importance, depicting such cultures as Maritime Archaic, Dorset, Pre-Inuit, recent Indigenous and European.
European Settlement and Maritime Industries
European settlers were drawn to the fjords for their sheltered harbors and abundant marine resources. Fishing communities established themselves along fjord shores, developing a maritime culture deeply connected to these waterways. The fjords provided protection from Atlantic storms while offering access to rich fishing grounds.
Modern Communities
Contemporary communities continue to depend on fjord ecosystems for their livelihoods and cultural identity. Tourism has become increasingly important, with visitors drawn to the dramatic landscapes and opportunities for wildlife viewing, though balancing economic development with conservation remains an ongoing challenge.
Conservation and Protected Areas
Recognition of the ecological and geological significance of Newfoundland and Labrador’s fjords has led to various conservation initiatives and protected area designations.
Gros Morne National Park
Gros Morne was recognized as a UNESCO World Heritage Site in 1987 due to its unique, accessible, pristine geological features, and Tablelands geological site. These geologic features and the glacially-derived topography are in near-pristine condition in Gros Morne National Park, and this condition is likely to persist since there is effective legislation to protect the property from development and since the property is managed in a way that can accommodate the current or projected number of visitors without adverse effects.
The Bonne Bay Marine Station located in the park specializes in marine research and education, contributing to scientific understanding of fjord ecosystems and supporting conservation efforts.
Proposed South Coast Fjords National Marine Conservation Area
The Government of Canada, the Government of Newfoundland and Labrador, Miawpukek First Nation, Qalipu First Nation, and the Town of Burgeo signed a Memorandum of Understanding in June 2023 to work together to assess the feasibility of creating a national marine conservation area in the South Coast Fjords area on the southwest coast of the island of Newfoundland.
The initial study area for the proposed national marine conservation area is approximately 9,114 square kilometres and is representative of the Laurentian Channel marine region. The strengthened protection of these special places would support the conservation of biodiversity and adaptation to climate change, while supporting the culture, traditions, and well-being of coastal and Indigenous communities who have long been stewards of these lands and waters.
Torngat Mountains National Park
Amid jagged peaks and vast glacial valleys, polar bears and caribou roam the Torngat Mountains, for centuries the homeland of Inuit who today now welcome visitors to experience a dramatic landscape where nature and culture meet. This park protects some of the most remote and pristine fjord landscapes in the province.
Scientific Research and Monitoring
The fjords of Newfoundland and Labrador serve as natural laboratories for studying glacial geology, marine ecology, and climate change impacts.
Geological Studies
Researchers investigate the deglacial sedimentary sequences from Nachvak and Saglek Fjords located in the Torngat Mountains of Northern Labrador. Results indicate that the deglacial and postglacial sedimentary dynamics of Nachvak and Saglek Fjords was influenced by massive mass-movement deposits possibly generated by earthquakes, sediment export by deglacial processes from both the local and the Hudson Bay areas and the influence of Labrador Sea waters.
Marine Biodiversity Research
Ongoing research examines the distribution and abundance of marine species within fjord systems. Scientists study how the unique physical characteristics of fjords influence species composition and ecosystem function, providing insights applicable to marine conservation globally.
Climate Change Monitoring
Fjords serve as sensitive indicators of climate change, with researchers monitoring changes in water temperature, ice cover, species distributions, and ecosystem productivity. These studies help predict how Arctic and sub-Arctic marine ecosystems will respond to continued warming.
Tourism and Recreation
The spectacular landscapes and rich wildlife of Newfoundland and Labrador’s fjords attract visitors from around the world, supporting local economies while raising awareness of conservation needs.
Boat Tours and Kayaking
Boat tours from the dock at Western Brook Pond allow visitors to truly appreciate the sheer height of the fjord’s walls and several of the 2,000-feet-high waterfalls that provide some of the lake’s freshwater, with this two-hour tour including commentary from an expert and several stops to enjoy the scenery. Kayaking offers a more intimate experience, allowing paddlers to explore fjord shorelines and observe wildlife at close range.
Hiking and Wilderness Experiences
The dock at Western Brook Pond is an easy 1.8-mile trek away from the main Western Brook Pond Fjord parking lot, across boardwalks and gravel. More challenging hikes lead to viewpoints overlooking fjords, providing spectacular vistas of these glacial valleys.
Wildlife Viewing
Newfoundland and Labrador has a burgeoning eco-tourism industry, centered partly around whale and bird watching experiences. The concentration of marine mammals and seabirds in fjord areas makes them prime locations for wildlife observation.
Sustainable Tourism Practices
Balancing economic benefits with conservation efforts is crucial, and effective management practices must be implemented to protect these fragile ecosystems from overexploitation, while sustainable tourism initiatives can help ensure that while the economic benefits are realized, the natural beauty and ecological integrity of Newfoundland’s fjords are preserved for future generations.
Threats and Challenges
Despite their remote locations and protected status in some areas, the fjords of Newfoundland and Labrador face various environmental threats and management challenges.
Climate Change Impacts
Rising temperatures affect fjord ecosystems in multiple ways, including changes in water temperature, altered ice dynamics, shifts in species distributions, and modifications to ocean circulation patterns. These changes can disrupt established ecological relationships and threaten species adapted to cold-water conditions.
Marine Pollution
Threats to the ecosystem include marine pollution, over-fishing and scallop dragging activities, depleted food stocks, and accumulation of toxic chemicals, while high levels of commercial and industrial activity in and around Placentia Bay have led to contamination and disturbance in a number of regions.
Overfishing and Resource Depletion
Historical overfishing has depleted some fish stocks, with cascading effects throughout fjord ecosystems. Murre and Razorbill breeding populations have been depleted, and Harlequin ducks decreased to three dozen in the mid-1990s. Sustainable fisheries management is essential for ecosystem recovery and long-term productivity.
Development Pressures
Balancing economic development with conservation remains challenging, particularly in areas where communities depend on resource extraction and industrial activities. Careful planning and strong regulatory frameworks are necessary to protect fjord ecosystems while supporting local economies.
The Future of Fjord Conservation
Protecting the fjords of Newfoundland and Labrador requires coordinated efforts involving government agencies, Indigenous communities, scientists, and local stakeholders.
Collaborative Management Approaches
By initiating a formal process to study the biodiversity, economic, cultural and historic values of the area through Indigenous and Western knowledge systems, these groups can work collaboratively to ensure the health and longevity of the South Coast Fjords region and promote inclusivity for community groups in conservation planning and protected areas forums.
Expanding Protected Areas
Canada and Newfoundland and Labrador agreed to work together to establish Eagle River Watershed protected area, negotiate a memorandum of understanding to assess the feasibility of a South Coast Fjords national marine conservation area and consider an adjacent national park in the Burgeo region, and advance marine conservation opportunities on the Labrador Coast in partnership with Labrador Indigenous communities.
Research and Monitoring Programs
Continued scientific research is essential for understanding fjord ecosystems and detecting environmental changes. Long-term monitoring programs track key indicators of ecosystem health, providing early warning of problems and informing adaptive management strategies.
Education and Outreach
Raising public awareness about the ecological and cultural significance of fjords builds support for conservation efforts. Educational programs, interpretive centers, and guided experiences help visitors appreciate these remarkable landscapes while understanding the importance of protecting them.
Conclusion
The coastal fjords of Newfoundland and Labrador stand as testament to the powerful forces that have shaped our planet over millennia. From their origins in glacial ice to their current role as biodiversity hotspots, these dramatic waterways continue to captivate scientists, visitors, and local communities alike. The steep cliffs, deep waters, and rich marine life of these fjords represent irreplaceable natural heritage, supporting ecosystems found nowhere else and providing insights into Earth’s geological and ecological history.
As climate change and human activities increasingly affect marine environments worldwide, the protection of these fjord systems becomes ever more critical. Through collaborative conservation efforts that honor Indigenous knowledge, support local communities, and apply rigorous scientific understanding, we can ensure that future generations will continue to benefit from and marvel at these extraordinary landscapes. The fjords of Newfoundland and Labrador remind us of nature’s power to create beauty and complexity, and of our responsibility to serve as careful stewards of these precious places.
For more information about visiting and protecting these remarkable landscapes, explore resources from Parks Canada’s Gros Morne National Park and learn about conservation efforts through the Canadian Parks and Wilderness Society Newfoundland and Labrador.