In which Joe Pera, a middle school choir teacher, presents to viewers the importance of Northern Michigan geology, especially iron. Also copper, azurite, tourmaline, and Lake Superior agate.
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| VidSrc | WatchSeries | 5 years |
| dood | fashionable | |
| dood | aaric.shreyan | |
| dood | aaric.shreyan | |
| dood | aaric.shreyan |