DIGITAL GEOLOGIC MAP AND MINERAL DEPOSITS
OF THE LAKE SUPERIOR REGION

MINNESOTA, WISCONSIN, MICHIGAN

USGS Open-File Report 97-455 (version 3, Nov. 1999)

Online Files for Geologic Map and Mineral Deposits of Minnesota, Wisconsin, and Michigan: Version 3

Originally released 1997; version 2 with expanded attribute information July 1999; version 3 with updated shoreline and state boundary data, Nov. 1999.

This digital product represents the bedrock geology of the states of Michigan, Wisconsin, and Minnesota taken from the most recently published regional compilations. Minor modifications and generalizations have been made from the published maps. This product is intended to provide a regional overview of mineral deposits and their relation to regional geology and is not intended for use at scales greater than 1:500,000. To fully utilize these datasets, you must have access to ArcView version 3.x or Arc/Info version 7.1.1 or greater. ArcExplorer also provides a more limited display and analysis capability. ArcExplorer is available at no charge and can be downloaded from ESRI.

Downloading Procedures 

ARC/INFO

superior_gly.e00 (10.2 Mb) Arc/Info (ver 7.1.1) export file containing Superior Geologic coverage.

superior_flt.e00 (1.3 Mb) Arc/Info export file containing Superior Fault coverage.

superior_mrds.e00 (652 kb) Arc/Info export file containing Superior MRDS (mineral deposit) records coverage.

ARCVIEW

superior.zip (2.8 Mb) ArcView dataset compressed using WinZip (Uncompress file using WinZip 6.3 or greater).

readme.1st Readme file for superior.zip file.

Open-File Report 97-455 Formal Metadata

Download Winzip software if you do not have an unzip utility.