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| Brent Hegstrom posted Boone, Iowa, Chicago North Western Railroad, Roundhouse, Turntable Patrick Hansen shared |
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| Dennis DeBruler commented on Patrick's share It is easy to determine that the roundhouse was southwest of the turntable. https://www.google.com/maps/@42.0617213,-93.8648511,356m/data=!3m1!1e3?entry=ttu |
It appears that part of the roundhouse had been removed by 1965.
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| 1965 Boone East Quad @ 24,000 |
So I got the oldest aerial available even though the scale was only 1:70,000 to confirm that it was larger than is shown on the 1965 topo map.
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| EarthExplorer: May 22, 1950 @ 70,000; ARA000700292868 |
I then got a higher resolution aerial to confirm that part of the roundhouse had been removed per the topo map. But it was still intact in 1963.
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| EarthExplorer: Dec 3, 1063 @ 17,000; AR1VAUD00020139 Dennis DeBruler commented on his comment I updated the satellite image to include the concrete pad that is south of the roundhouse remnant because that appears to be a backshop in this 1963 aerial photo with a scale of 1:17,000. |
Did they reduce the roundhouse between 1963 and 1965? Maybe so. I got the next available aerial and the roundhouse is smaller. But the topo map shows the wrong remaining segment of the roundhouse. I also learned that a scale of 1:101,389 is good enough to see roundhouses and backshops.
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| EarthExplorer: Apr 23, 1971 @ 101,389; AR6171000704510 |
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| John Sprecher posted Found this post card on eBay |
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