Geology of the Black Hills of Dakota (1880)

Report on the geology and resources of the Black Hills of Dakota

Geology of the Black Hills of Dakota (1880)
Geology of the Black Hills of Dakota (1880) image detail
Date: 1880
Author: USGS
Dwnld: Full Size (9.85mb)
Source: Library of Congress
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This map isn't part of any series, but we have other geological maps that you might want to check out.

Interesting birdseye of some domed rock formation in the Black Hills [gmap] region of South Dakota. If you know which one, please let me know.

Very strange is the legend, which is a bit confusing, and which I've never seen the likes of, before. So... one diving bird represents archaean schists but two swooping birds represent carboniferous limestone. One gliding bird is dakota sandstone and two soaring birds is newer cretaceous. It's all very strange.



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