Top of Bedrock Units

This raster dataset represents the tops of the St. Peter Sandstone, Prairie du Chien Group, Jordan Sandstone, St. Lawrence Formation, Franconia Formation, Ironton and Galesville Sandstones, Eau Claire Formation, and Mt. Simon Sandstone in the Twin Cities metropolitan area of Minnesota.This dataset was developed by Barr Engineering Company for the Metropolitan Council to support the development of Metro Model 2.<br/><br/>More information about this process is provided in the 2009 Metropolitan Council report 'Twin Cities Metropolitan Area Regional Groundwater Flow Model Version 2.00 - Technical Report in Support of the Metropolitan Area Master Water Supply Plan', which is available online at

Additional Info

Field Value
Last Updated November 2, 2018, 10:03
Created September 22, 2015, 10:02
dsAccessConst None
dsCurrentRef Datasets developed by Barr Engineering Company in 2008
dsModifiedDate 2018-11-02 00:51:50
dsOriginator Barr Engineering Company
dsPeriodOfContent 3/26/2009
dsPurpose The 2005 Minnesota Legislature directed the Metropolitan Council to "carry out planning activities addressing the water supply needs of the metropolitan area" (Minnesota Statutes, Section 473.1565). Specifically the Council is charged with developing a base of technical information for water supply planning decisions and to prepare a metropolitan area master water supply plan. This dataset supports this charge.

Dataset extent