Mandan Sand/Gravel pit, Mandan, Keweenaw Co., Michigan, USA
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|Location is approximate, estimate based on other nearby localities.|
|Latitude & Longitude (WGS84):||47° 25' 29'' North , 88° 1' 0'' West (est.)|
|Margin of Error:||~0km|
|Other regions containing this locality:||Keweenaw Peninsula, Michigan, USA|
|Köppen climate type:||Dfb : Warm-summer humid continental climate|
A sand/gravel pit located just off US41 in Mandan, Michigan. Some datolite, "float copper," and coral fossils can be found here. The best area for datolite collecting is near the rim of the pit alongside conglomerate cobbles. The datolite here comes in many colors, but most have been completely "weathered" to white with most crumbling into a fine powder. Some good datolite can be found "protected" in their rock hosts. The datolite found here is beautiful, but is also quite rare and it can be frustrating having a softball sized datolite crumble in your hands! It is private property but it is okay to collect. Just absolutely no all terrain vehicles.
2 valid minerals.
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