As far as I know quarry lakes are created over time as rainwater fills the quarry over years. What keeps an open quarry from getting filled the same way when it rains?
Please tell me if the flair is wrong, I estimated this one to be the closest fitting.
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You should check out a Cornish pumping engine. The biggest in the US is near Iron Mountain, Michigan. Some of the biggest pieces of equipment in the US and the world are in the Western Upper Peninsula in Michigan. Don’t visit it in the Fall, Winter, or Spring. Summer only!
The flywheel’s normal speed was 10 RPM. Pumping capacity at 1,500 feet was 319 gallons per stroke, or 3,190 gallons per minute. This equaled 191,400 gallons per hour and 4,593,600 gallons per 24 hours.
[https://menomineemuseum.com/cornish-pump-museum#:~:text=The%20Cornish%20Pumping%20Engine%2C%20the,Mechanical%20Engineering%20Landmark%20(1987)](https://menomineemuseum.com/cornish-pump-museum#:~:text=The%20Cornish%20Pumping%20Engine%2C%20the,Mechanical%20Engineering%20Landmark%20(1987)).
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