Browns Field is located in Fox Valley Wahroonga, 17 km (11 mi) north-west from Sydney, in the state of New South Wales, Australia.

A unique rainforest grows nearby, due to enriched soils from ancient volcanic activity.

Much of the rock formed by the diatreme is buried under soil cover, as well as landfill that helped create the sports oval at Browns Field.

[1][2] The local indigenous Australian people, the Kuringgai occupied this area for thousands of years.

[9] The paucity of fire, dark volcanic soils and high rainfall, contribute to rainforest vegetation.

The average annual rainfall is 1,400 mm (55 in) at the nearby Kissing Point Road weather station.

Many bird species live nearby, such as rainbow lorikeets, Australian king parrots, crimson rosellas, currawongs, koel and the tawny frogmouth.