OFR91-04, Description of map sheets for the central Duluth Complex shallow drilling project

Chandler, V.W.Miller, James D., Jr.2012-03-212012-03-211991https://hdl.handle.net/11299/121821General descriptive information about the central Duluth. Complex maps including drill hole facts and descriptions of map units. Text only, no maps included.en-USOFR91-04, Description of map sheets for the central Duluth Complex shallow drilling projectReport