• Acid Mine Drainage: Why are we concerned about metallic sulfide mining?

• Geologic and Geotechnical Reports for the Eagle Project

• Map showing all Highland Mining prospects in 2013

• What are Mineral Rights?

• The Economic Impacts of Renewed Copper Mining in the Western Upper Peninsula of Michigan - Thomas Power

• Mining Exploration on the Keweenaw Peninsula - FOLK Fact Sheet

• Summary of Michigan Nonferrous Mining Regulations

• Technical Report on the Centennial and Kingston Native Copper Deposits

• Summary of known mining and mineral exploration activities in Gogebic, Ontonagon, Baraga, Houghton, and Keweenaw Counties, as of Feb. 2013​​

• Investing in the Keweenaw's Future: Moving Toward Sustainable Development

• Exploratory drilling in Porcupine Mountains Wilderness State Park (perhaps the Crown Jewel of the Michigan State Park System) results in a muddy mess.  Highland Copper slapped with violation notice by MDEQ.

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