| 1956 | Pre-Graduation, Trail |
| Smelter work Miner trainer |
|
| 1956 - 1957 | Britannia Mines |
| Miner Surveyor Shaft engineer |
|
| 1957 - 1960 | Denison Mines |
| Mine captain | |
| 1960 - 1966 | Inco Limited |
| Chief mines planning engineer, Manitoba Division | |
| 1966 - 1969 | Denison Mines |
| Assistant General Manager and Executive Assistant to COO, Director and V.P., Various Cos | |
| 1969 - 1972 | Inco Limited |
| Vice President, Operations, Inco Australia and P.T. Inco Indonesia | |
| 1972 - 1975 | Tara Mines Limited |
| Vice President and General Manager | |
| 1975 - 1985 | Denison Mines |
| President and COO, Chairman Various Cos | |
| 1985 - 1994 | Curragh Resources Company |
| Founder, Chairman and CEO, Chairman Various Cos | |
| 1995 - 2001 | Director and Private Mining Consultant |
| Chairman Various Cos | |
| 2002 - 2007 | Founder, Chairman |
| Various Cos |
Minister of Indian Affairs and Northern Development
