Rockshelters were places of refuge from the weather, for short or long periods of habitation, and as places for performing ceremonies or making stone tools. Rockshelters may be found throughout Tasmania, usually in areas of limestone, dolerite and sandstone. Limestone rockshelter sites in Tasmania’s southwest are important to the Aboriginal community and are of particular interest to archaeologists due to the unique conditions in this region. Floor deposits within limestone rockshelters are often covered by a thin layer of limestone deposited during the natural erosion of the shelter roof and walls. When the rockshelter is unoccupied for a long period of time this limestone deposit builds and hardens to form a “cap” that seals and protects the underlying floor from wind or water erosion.

 

 

The recording and excavation of rockshelters provides the opportunity to study past Aboriginal life. This study can be undertaken through archaeological recording and, if appropriate and following Aboriginal community consultation, a program of excavation. While recording documents, surface artefacts and features, archaeological excavation involves the careful exposure of sediment that has built up on rockshelter floors. This build up is caused by natural processes such as wind, and the natural erosion of the rock formation in which the rockshelter is located. Over time, this sediment builds up like a layer cake. When carefully exposed through archaeological excavation, these layers form a vertical timeline stretching back hundreds and even thousands of years showing evidence of human activity. 

These episodes of human activity are indicated by varying bands of sediment containing artefactual materials, archaeological features or organic materials. Archaeological materials and features can include charcoal, ash, artefacts, animal bones or hearths (fireplaces). Under ideal environmental conditions, organic materials such as microscopic pollen, plant material and shells can also be discovered.

 

Rockshelter sites are significant to the Aboriginal community. They are also significant globally as they hold valuable information about understanding past environments, environmental changes and dietary behaviours of Tasmania’s original inhabitants.

 

The examination of material from rockshelters increases our understanding of past Aboriginal occupation and even the nature of the surrounding environment. The dating of charcoal from hearths provides an understanding of the nature of occupation within a rockshelter over time. Analysis of animal bones can identify diets and what species of animals Aboriginal people hunted. Organic materials can inform understanding of the past environments in which Aboriginal people lived. 

Among the most remarkable Aboriginal rockshelter sites in Tasmania are those located within the Tasmanian Wilderness World Heritage Area (TWWHA). Considered to have high cultural value to Tasmanian Aboriginal people, they represent important physical evidence of Aboriginal occupation in the area for the past 35,000 years. They indicate Aboriginal habitation of the TWWHA was the most southern human occupation at this time. Recording and excavation within a number of these sites has uncovered extremely well preserved deposits and artefactual materials. This has increased understanding of past environments and the use and modification of the landscape by Aboriginal people.

 

Tasmanian Aboriginal cultural material or sites are defined as ‘relics’ and therefore protected under the Aboriginal Heritage Act 1975. It is an offence to destroy, damage, deface, conceal, remove or otherwise interfere with a relic. It is also an offence not to report the finding of a relic. So if you suspect that an Aboriginal rockshelter has been discovered during your activity, do not interfere with the site. Report the site to Aboriginal Heritage Ta​smania.  Provide the location of the site and images on the Aboriginal Heritage Site Reporting Form and forward to aboriginalheritage@dpac.tas.gov.au​. 

Preserve Tasmanian Aboriginal cultural sites by reporting their presence to Aboriginal Heritage Tasmania.​