The Rainy River mine is located approximately 65 kilometres northwest of Fort Frances, Ontario. The site is situated on the traditional lands of Treaty #3 Anishinaabe Communities in Northwestern Ontario.
Exploration in the general area of the property began in 1967. In 1990, the property was acquired by Nuinsco Resources Ltd. who actively explored the ground from 1993 to 2004. The property was sold to Rainy River Resources Ltd. in June 2005, which continued exploration and development of the project until New Gold acquired the property from Rainy River Resources Ltd. in October 2013. Construction began in March 2015 and the mine reached commercial production in October 2017.
Rainy River will utilize both open pit and underground mining through its life of mine.