Thunderbird Resources has expanded its gold footprint in NSW, lodging an application for a strategic 118-square-kilometre expansion to its Kookabookra gold project immediately to the east. The company is doubling down on its gold presence in the state, suggesting that Kookabookra could host an intrusion-related gold system – similar to the kind of deposits that's delivered multi-million-ounce gold hauls at places such as Fort Knox in Alaska and Kidston in Queensland.