[1] In particular, it is said that Pemulwuy, a Bidjigal leader of aboriginal resistance against British occupation, used the area as a base to mount attacks on neighbouring homesteads.
It includes a rich diversity of vegetation which includes remnants of Blue Gum High Forest and ridgetop woodlands, but mostly consists of dry sandstone gully forest on sandstone base soils with some areas retaining Wianamatta Shales.
In recent years there have been reliable recordings of koala, swamp wallaby, echidna, eastern water dragon, and sugar gliders, as well as the ubiquitous brushtail and ringtail possums.
Foxes have been largely eradicated by a continuing baiting program, leading to a significant increase in the number of native animals in the reserve.
There are also reliable reports of other works of Australian aboriginal art, including hand stencils and rock engravings, but none have been identified in recent years, and they may have been damaged or destroyed.
On 15 September 2001, an agreement was reached between the Government of New South Wales, Baulkham Hills Shire Council and descendants of the Darug to settle an outstanding native title claim (N94/6)which dated back to 1994.
Bidjigal reserve was dedicated for the purposes of preservation of aboriginal cultural heritage, flora and fauna and public recreation on 22 October 2004.
On 1 December 2007, BHSC resigned its membership of the Board, citing issues related to the funding of crown land.