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Engelbrecht Cave
Engelbrecht Cave (also known as North Terrace Cave, Vansittarts Cave and 5L19 & 5L20) is a cave system in the Australian state of South Australia consisting of a sinkhole with two major passages located under the Mount Gambier urban area. It is owned by the local government area of City of Mount Gambier and has been developed as a tourism venue. Its dry extent is notable as a show cave while its water-filled extent is notable as two separate cave diving sites.
The cave is located on a parcel of open land within the residential area bounded to the north by Jubilee Highway West (the name used for the Princes Highway within Mount Gambier) and by the following roads on its west, south and east sides - Ehret Street, Chute Street and Victoria Terrace.
The cave consists of a collapsed area known as a sinkhole with two main passages - one running in an easterly direction and one running in a westerly direction. The east passage which extends about 70 metres (230 ft) from the doline's opening, leads to a lake where a water-filled passage leads to an air chamber. The west passage which extends about 300 metres (980 ft), is only accessible by cave diving for the majority of its length and includes a major air chamber is located immediately below Jubilee Highway West.
The ground level at street level adjoining the cave is 41 metres (135 ft) above sea level while the water level throughout the cave system is 12 metres (39 ft) above sea level. Access to the cave within Mount Gambier's street system is via Chute Street.
The site is named after Carl Engelbrecht, a German immigrant who settled in Mount Gambier during the 19th century. The cave is also known as Engelbrecht's Cave, North Terrace Cave and Vansittarts Cave.
The Cave Divers Association of Australia (CDAA) refers to the flooded portion of eastern passage as Engelbrechts Cave - East and to the flooded portion of western passage as Engelbrechts Cave - West .
The Cave Exploration Group (South Australia) Incorporated (CEGSA) has classified the cave as being two sites and has identified both using its unique numbering system. The passage running in the easterly direction is numbered as 5L-19 while the passage running in the westerly direction is 5L-20.
The cave is located in a limestone known as Gambier Limestone which was formed between 35 and 45 million years ago and has an estimated thickness of about 100 metres (330 ft) at the cave itself. The topsoil surrounding the cave is volcanic in origin and dates back to the last eruption of the Mount Gambier volcano from between 2,800 and 26,000 years ago.
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Engelbrecht Cave
Engelbrecht Cave (also known as North Terrace Cave, Vansittarts Cave and 5L19 & 5L20) is a cave system in the Australian state of South Australia consisting of a sinkhole with two major passages located under the Mount Gambier urban area. It is owned by the local government area of City of Mount Gambier and has been developed as a tourism venue. Its dry extent is notable as a show cave while its water-filled extent is notable as two separate cave diving sites.
The cave is located on a parcel of open land within the residential area bounded to the north by Jubilee Highway West (the name used for the Princes Highway within Mount Gambier) and by the following roads on its west, south and east sides - Ehret Street, Chute Street and Victoria Terrace.
The cave consists of a collapsed area known as a sinkhole with two main passages - one running in an easterly direction and one running in a westerly direction. The east passage which extends about 70 metres (230 ft) from the doline's opening, leads to a lake where a water-filled passage leads to an air chamber. The west passage which extends about 300 metres (980 ft), is only accessible by cave diving for the majority of its length and includes a major air chamber is located immediately below Jubilee Highway West.
The ground level at street level adjoining the cave is 41 metres (135 ft) above sea level while the water level throughout the cave system is 12 metres (39 ft) above sea level. Access to the cave within Mount Gambier's street system is via Chute Street.
The site is named after Carl Engelbrecht, a German immigrant who settled in Mount Gambier during the 19th century. The cave is also known as Engelbrecht's Cave, North Terrace Cave and Vansittarts Cave.
The Cave Divers Association of Australia (CDAA) refers to the flooded portion of eastern passage as Engelbrechts Cave - East and to the flooded portion of western passage as Engelbrechts Cave - West .
The Cave Exploration Group (South Australia) Incorporated (CEGSA) has classified the cave as being two sites and has identified both using its unique numbering system. The passage running in the easterly direction is numbered as 5L-19 while the passage running in the westerly direction is 5L-20.
The cave is located in a limestone known as Gambier Limestone which was formed between 35 and 45 million years ago and has an estimated thickness of about 100 metres (330 ft) at the cave itself. The topsoil surrounding the cave is volcanic in origin and dates back to the last eruption of the Mount Gambier volcano from between 2,800 and 26,000 years ago.