Walker Quarries Pty Ltd (a wholly own subsidiary of Sitegoal Pty Ltd) is developing a hard rock quarry near Wallerawang, just west of Lithgow NSW.

The NSW Government has finalized all the approvals for the Wallerawang Quarry. The site is a greenfields development and the owners are considering a number of options which includes putting the Quarry up For Sale. The proposed Quarry is adjacent to the Great Western Highway and comes with a 24hr/7 day trucking approval. Products include Railway Ballast, Road Base and Concrete materials with close proximity to Sydney and the Main Western Railway Line (Lidsdale).