1971
Miners and mill painted into a green Shield landscape.
The company
Rio Algom Mines Limited produced uranium oxide at its Elliot Lake mines in Ontario during 1971.
Rio Algom Annual Report 1971, p. 6
That year
Rio Algom’s Elliot Lake mines produced 4,492 thousand pounds of uranium oxide in 1971, milling 1,564 thousand tons of ore.
Rio Algom Annual Report 1971, p. 6
Source
archive.org/details/RioA0508_1971
Other years 1967