The Whistler project is located in the Yentna Mining District, approximately 150 km northwest of Anchorage, Alaska. The geology of the Whistler project is characterized by a thick succession of Cretaceous to early Tertiary volcano-sedimentary rocks intruded by plutonic rocks. More than 70,000 metres of diamond drilling has been completed on the 170 km2 property and porphyry-style gold-copper mineralization has been identified at three main deposits: Whistler, Raintree West, and Island Mountain. In addition to these deposits, other targets have been identified on the property for future exploration.
A technical report was completed in 2016 and included maiden resources on the Raintree West and the Island Mountain deposits. In June 2021, an update was released with Indicated Mineral Resources of 118.2 Mt grading 0.51 g/t gold, 2.19 g/t silver and 0.16% copper and Inferred Mineral 317.0 Mt grading 0.46 g/t gold, 1.58 g/t silver and 0.10% copper (NSR cut-off of $10.50–$25.00/tonne).
GoldMining announced results of an updated Mineral Resource Estimate on the Whistler project consisting of resource estimates for the Whistler, Island Mountain, and Raintree West gold-copper deposits. The company is evaluating potential exploration activities to better define and expand existing mineral resources.