O'Brien is a former mining town in northeastern Ontario near Gowganda with a warm-summer humid continental (Dfb) Köppen climate classification. The mining town serviced several mines including silver mines around nearby lake Miller Lake; one of the past-producing silver mines was Ontario's largest producing Cobalt-style silver mine outside of Cobalt, with historical production of 40.7 million ounces of silver between 1910 and 1972.[1][2]
O'Brien | |
|---|---|
| Former Town of O'Brien | |
  O'Brien Location in Ontario | |
| Coordinates: 47°40′27″N 80°44′36″W / 47.67417°N 80.74333°W | |
| Country | Canada |
| Province | Ontario |
| District | Timiskaming District |
| Township | Nicol Township |
| Postal code | POJ 1J0 |
References edit
- ^ "O'Brien (Former Town of), Nicol Township, Gowganda area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada". www.mindat.org. Retrieved 2022-06-18.
- ^ "SILVER RESOURCE: Gowganda tailings estimate nears 3-M contained oz". Canadian Mining Journal. 2011-06-08. Retrieved 2022-06-18.
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