Port Radium is a mining area on the eastern shore of Great Bear Lake, Northwest Territories, Canada. It included the settlement of Cameron Bay and the Eldorado Mine and Echo Bay Mine. The name Port Radium did not come into use until 1936 and at the time it was in reference to the region as a whole. The Eldorado mine site at LaBine Point adopted the name for its settlement in the 1940s and it has generally stuck.
Port Radium is situated at 66°5′6.6″N 118°2′9.6″W / 66.085167°N 118.036000°W on LaBine Point on the McTavish Arm of Great Bear Lake. Cameron Bay is situated 7.25 km southeast at 66°3′47.16″N 117°53′12.24″W / 66.0631000°N 117.8867333°W and Port Radium Airport is at 66°6′7.46″N 117°56′12.69″W / 66.1020722°N 117.9368583°W between the two to the north and consisted of a gravel airstrip next to Glacier Lake.