Drill Logs

Minerals, Metallurgy & Mining


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Mesoproterozoic drill holes
Duluth Complex

Boulder Lake
Download all of these files in BOULDER LK INTR.zip

Cloquet Lake
Download all of these files in CLOQUET LK INTRUSION.zip

Layered Series at Duluth
Download all of these files in LAYERED SERIES AT DULUTH.zip

Partridge River Intrusion
Download all of these files in:

South Kawishiwi Intrusion
Download all of these files in SKI.zip (Large file size warning)

Western Margin Intrusion
Download all of these files in WESTERN MARGIN INTR.zip

Paleoproterozoic drill holes
Iron Formation

Gunflint Iron Formation
Download all of these files in ON_1.pdf