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Eagle River, Keweenaw Co., Michigan, USA

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Latitude & Longitude (WGS84): 47° 24' 49'' North , 88° 17' 44'' West
Latitude & Longitude (decimal): 47.41381,-88.29566
Other regions containing this locality:Keweenaw Peninsula, Michigan, USA
Köppen climate type:Dfb : Warm-summer humid continental climate


A populated place on Lake Superior.

Mineral List

Mineral list contains entries from the region specified including sub-localities

9 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Mesoproterozoic
1000 - 1600 Ma



ID: 2871548
Copper Harbor Conglomerate

Age: Mesoproterozoic (1000 - 1600 Ma)

Stratigraphic Name: Copper Harbor Conglomerate

Description: Red lithic conglomerate and sandstone; mafic to felsic volcanic flows similar to those of the unnamed formation (unit Yu) are interlayered with the sedimentary rocks.

Comments: Note: The unnamed formation has since been named the Porcupine Volcanics (Ypv).

Lithology: Major:{conglomerate,sandstone}, Minor:{mafic volcanic}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License


Localities in this Region


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