The Gondwana Rainforests of Australia, formerly known as the Central Eastern Rainforest Reserves, are the most extensive area of subtropical rainforest in the world. Collectively, the rainforests are a World Heritage Site with fifty separate reserves totalling 366,500 hectares (906,000 acres) from Newcastle to Brisbane.
The Gondwana Rainforests are so-named because the fossil record indicates that when Gondwana existed it was covered by rainforests containing the same kinds of species that are living today.
Not all Gondwanan rainforests in Australia are located in the New South Wales – Queensland region; the largest Gondwanan rainforest in Australia is located in Tasmania's Tarkine wilderness. The number of visitors to the Gondwana rainforest reserves in New South Wales and Queensland is about 2 million per year.
The forests were inscribed to the World Heritage list in 1986, covering only the New South Wales sites of approximately 310,800 hectares (768,000 acres) and extended in 1994 to cover the Queensland sites of approximately 59,200 hectares (146,000 acres) which is a total of approximately 370,000 hectares (910,000 acres).
The rainforest reserves have an extremely high conservation value, with more than 200 rare or threatened plant and animal species.
Eight separate areas have been identified as having outstanding heritage significance to Australia and are included on the Australian National Heritage List. The altitude of the reserves ranges from sea level to almost 1,600 m (5,200 ft).
On 22 December 2000, the High Conservation Value Old Growth forest covering 24 national parks and 19 nature reserves spread across 12 local government areas in the upper north east region of New South Wales were listed on the New South Wales State Heritage Register.
According to en.wikipedia