![Why Westmoreland County has been the canary in our coal mine for 250 years | Pittsburgh Post-Gazette Why Westmoreland County has been the canary in our coal mine for 250 years | Pittsburgh Post-Gazette](https://9b16f79ca967fd0708d1-2713572fef44aa49ec323e813b06d2d9.ssl.cf2.rackcdn.com/1140x_a10-7_cTC/Westmoreland0407-1-1681254378.jpg)
Why Westmoreland County has been the canary in our coal mine for 250 years | Pittsburgh Post-Gazette
Experience Barnsley: Museum & Discovery Centre - A Haldane humane canary cage - Used in coal mining the cage would have contained a canary to detect toxic gas in the mines. It
Small antique wooden coal miner's canary cage - SOLD The little cages were used to take a canary into the coal mines to be an early… | Instagram
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