WESTONIA TOWN COMMON is 2,355 hectares of bushland adjacent to the small town of Westonia. Westonia is located in the eastern wheatbelt, a grain growing area of Western Australia. A large gold mine has been operating near the town for many decades. It closed in 2025. The Shire of Westonia manages the Common.

Westonia lies within the traditional lands of the people who comprised the Marlinyu Ghoorlie land claim group and whose ancestors cared for those lands over hundreds, and maybe thousands, of years. From the 1860s the area now known as Westonia Common was traversed by many recent immigrants - firstly explorers seeking pastoral prospects and sandalwood cutters, and later fortune hunters flocking to new-found goldfields that were further east. Gold was found near Westonia in 1910 leading to a goldrush which lasted until 1922. During that time, the Common was heavily used as there were up to 2000 people in the area, all needing firewood and water. Food, water and yards for their horses and other animals were essential and caused further disturbance to the bushland. Additionally there was a lot of mining exploration and mining so local timber was used for stabilizing the early diggings. There are many tracks through the Common and many signs of past and more recent human activities. Feral foxes, cats and rabbits are plentiful in the Common but there are also native animals such as kangaroos, echidnas, and various reptiles and more than 50 bird species. Nevertheless the Common retains a rich diversity of flowering plants. Each of the plant species is adapted for harsh conditions. Westonia is near the eastern boundary of Mediterranean climate and the western boundary of semi-arid climate. Typically there is a long hot dry spell over summer with hot easterly winds, and the annual rainfall averages only around 325mm, most of it falling in winter. The amount of rain in a year varies a lot e.g. 2022, 501mm; 2023 214mm.

The Common is mostly open eucalypt woodland. Different species dominate e.g. Salmon Gum, Gimlet, Morrell. Alternatively there is often a mix of eucalypts. Usually shrubs e.g. eremophilas, wattles and hakeas, form a sparse understorey. Below the taller understorey some scattered lower woody shrubs e.g. buttercups, peas and heaths with an array of herbs e.g. orchids, mulla-mullas and everlastings, in season. One reason that the bush looks rather depleted in summer and until the autumn rain, is that nearly all of the herbs and all of the orchids, are missing.

There are a few areas of exposed granite. Boodalin Soak is the largest. As a well was established there in 1865, the area was a much-used campground and has been cleared and also infested with many weeds. but several native plant species have persisted.