Tasmania’s Franklin River
By Marco Stojanovik
Franklin-Gordon Wild Rivers National Park, at the heart of the Tasmanian Wilderness World Heritage Area, is valued for its dramatic peaks, beautiful temperature rainforest, deep valleys, spectacular gorges, and pristine, twisting rivers. The Franklin River itself winds its way 125km south-west through the wilderness national park, from its source in the alpine lakes of the Cheyne Ranges to its confluence at the Gordon River.
Surveyor James Calder named the river in 1840 after Sir John Franklin, Governor of Tasmania (1837-1843). Calder had been sent to blaze a trail that would allow Sir Franklin to explore the land he governed. But these explorations were not the first time humans had traversed the rainforest areas of western Tasmania. Aboriginal Australians had in fact inhabited the area, sheltering in the caves above the Franklin River, during the last Ice Age (20,000 – 13,000 years ago). A number of archaeological discoveries towards the end of the twentieth century speaks to the region’s importance.
This cultural significance, in addition to its spectacular untouched scenery, lies behind the region’s World Heritage status. Even so, its recognition has been hard fought for, the Franklin River placed at the centre of Australia’s most famous conservation movement, taking place in the late 1970s and early ‘80s.
This article details the course of the Franklin River, its history of Aboriginal inhabitants, as well as the successful campaign to save the Franklin River from being destroyed by the Franklin Dam project. It is intended as background reading for Odyssey Traveller’s tour of Tasmania‘s wildlife and history, during which we visit Franklin-Gordon Wild Rivers National Park. Much of the information used in this article is sourced from Ian Hoskin’s Rivers: The Lifeblood of Australia.
The Franklin River’s Course
The Franklin River rises in the high country of central-western Tasmania, on the western slopes of the Central Highlands, twisting and turning through remote and rugged mountainous country down to meet its confluence with the Gordon River in the south-west. During its course it runs through bare quartzite mountains, button-grass plateaus, alpine lakes, and forested valleys.
In its upper reaches, the river supplies and drains two high waters: Lake Undine and Lake Dixon. It is also here crossed by the Lyell Highway.
It then descends with rapids and water flows that can increase many times overnight with heavy rain. When this occurs, instant waterfalls are created on its steep sides. Snow melting on the surrounding peaks meanwhile adds to the volume.
The river then descends below Frenchmans Cap, moving slowly, deeply, and narrowly through the near vertical rock walls. Following this, it twists and turns with bends, rocky rapids, and cascades through its middle and lower passages.
From source to mouth, sixteen tributaries join the river, including the Surprise, Collingwood, Lucan, Loddon, Andrew, and Jane rivers.
Aboriginal History
Aboriginal Tasmanians (Palawa kani) have inhabited Tasmania for more around 40,000 years. Sometime during the Last Glacial Period, when the sea was at its lowest, tribes began crossing into Tasmania from mainland Australia via a land-bridge spanning the Bass Strait. This land bridge was of desert and woodland and supported emus and other game.
Archaeological, geographic, and linguistic records show that Tasmania was occupied in waves and that over time three ethnic of language groups coalesced into one broad group. Then, when the glaciers retreated and sea levels rose again around 8,000 years ago, Tasmanian Aboriginals became isolated from the mainland, developing their own unique and rich culture.
Until the late 1970s, consensus was that the rainforest areas of western Tasmania were a ‘true wilderness’, the only part of the Australian continent to never be inhabited by Aboriginal peoples. Discoveries were soon made, however, in the limestone caves above the lower Franklin that upended this assumption.
In 1977, a group of cavers led by Kevin Kiernan were systematically exploring the area in the hope of aiding the campaign to save the Franklin River from being dammed (see next section). By 1979, over a hundred caves had been found and mapped.
One particular cave, above a bend in the river some 10km north of the junction with the Gordon, was littered with artefacts and bones over an area of around 100 square metres. Kutikina Cave, as the site would be named, was to become one of the most important archaeological sites ever found relating to Ice Age human culture – representing the southernmost human habitation on earth during that period.
A subsequent excavation unearthed 40,000 stone artefacts and almost 250,000 bone fragments, indicating that the site might hold a total of 10 million artefacts. Radiocarbon dating then later revealed that the rock shelter was first inhabited at the beginning of the Ice Age, 20,000 years ago, reached its peak 17, 000 years ago, and ended suddenly due to changing climatic conditions at the end of the Ice Age 13, 000 years ago. It was further evidence of the vast antiquity of Aboriginal culture in Australia.
Twenty more dwelling cave sites containing archaeological remains have since been found in the six valleys of the Franklin-Gordon River System. Occupation of each cave began around 20,000 years ago, and ended around 13, 000 years ago, at the end of the Ice Age.
At Deena Reena Cave, similar collections of Ice Age tools, charcoal and bones were found, while paintings (likely from the Ice Age) were found at Ballawinne Cave on the Maxwell River. In total, the Tasmanian World Heritage Area is home to approximately 1000 Aboriginal heritage sites.
The number of sites suggest that the occupation of the lower Franklin area was systematic and prolonged. Early occupation may have been a summer activity, with bands living further north, on the Bassian Plain (now Bass Strait) or even present-day Victoria. The tools of the deposit closely resemble those found near Lake Mungo, indicating extensive cultural exchange with mainland Australia.
The inhabitants of the cave would have lived in a very different environment from the one found today. At the end of the Ice Age, Tasmania was roughly the same distance from the polar ice sheet as Patagonia is today. The west Tasmanian mountains would have been home to glaciers; while, because so much water was locked in polar ice, the climate would have been much drier, supporting alpine herb fields rather than rainforest. Though much colder, this open habitat would have been much better for hunting.
Their main diet would have consisted of wallabies, possums and other land animals, from which they’d also source skin for clothing. The icy river meanwhile would have provided reliable drinking water.
At the end of the Ice Age, the rainforest would have spread back through the lowlands, making the place less easily negotiated by humans and the game they depended on. Aboriginal people were at this point forced to leave the ice-age caves and the cold river valley and move to the edge of the landscape. Their descendants returned to a more turbulent river and its thick temperate rainforest centuries later, but it is unclear whether there were visits or more permanent residencies
The area continues to be of great spiritual significance to today’s Tasmanian Aboriginal community, and many sites have been returned to Aboriginal ownership under the Aboriginal Lands Act 1995, including Kutikina Cave. Far from a wilderness, the wild landscapes of Western Tasmania are a place of ancient human habitation, with an enduring spiritual and cultural importance.