James Olson Minnesota DNR - Lands and Minerals GIS Analyst 651-259-5429 500 Lafayette Rd Saint Paul MN 55155 james.olson@state.mn.us 2018-07-13 12:24:29 http://www.dnr.state.mn.us/lands_minerals/aggregate_maps/completed/index.html M-102 Primary Sources of Construction Aggregate in the Twin Cities Seven-County Metropolitan Area - Bedrock Aggregate Sources 2014-07-23 Minnesota Geological Survey Minnesota DNR - Lands and Minerals The original data of bedrock aggregate sources was sourced from the Minnesota Geological Survey (MGS) for the M-102 project, Primary Sources of Construction Aggregate in the Twin Cities Seven-County Metropolitan Area. The dataset presented here was reformatted by the MN DNR in order to distribute it on an online map server of Aggregate Resources data. The orignial data file is called 'agbr99_polygon'. The datafile included codes rather than descriptions. The DNR reformatted the data by adding in descriptions for each code for easier reading and comprehension. Please consult the orignial MGS data, maps, and metadata at: http://conservancy.umn.edu/handle/11299/57004 According to the MGS, information that was used to map bedrock aggregate source units include bedrock outcrops, water-well and soil-boring records, soil maps, and topographic maps. The dataset includes information on bedrock formation, general thickness of the formation, and data reliability. To summarize the bedrock resource potential digitized by the MGS for the 7-county metropolitan area to assist in the goal of Minnnesota Statutes, section 84.94. The bedrock resource potential spatial database is an interpretative data product intended to be used for planning purposes. For example, a community may want to differentiate and protect resources by their quality; they may want to separate resource extraction from other uses to minimize land-use conflict; or they may want to reduce haulage cost by identifying sources in proximity to a project because aggregate is a high bulk, low price commodity and transportation costs can significantly affect price. About Minnnesota Statutes, section 84.94 and the DNR's Aggregate Resource Mapping Program: The Aggregate Resource Mapping Program (ARMP) began in 1984 when the Minnesota Legislature passed a law (Minnnesota Statutes, section 84.94) to: Identify and classify aggregate resources out side of the Twin Cities metropolitan area; Give aggregate resource information to local units of government and others for making comprehensive land-use and zoning plans; Introduce aggregate resource protection; and Promote orderly and environmentally sound development of the resource. Aggregate Mapping Home Page: http://www.dnr.state.mn.us/lands_minerals/aggregate_maps/index.html Aggregate Mapping Methodology: http://www.dnr.state.mn.us/lands_minerals/aggregate_maps/methodology.html James Olson Minnesota DNR - Lands and Minerals GIS Analyst 651-259-5429 500 Lafayette Rd Saint Paul MN 55155 james.olson@state.mn.us http://images.dnr.state.mn.us/lands_minerals/aggregate/csp_mgs_image.jpg bedrock sources, geological characteristics, construction aggregate potential, crushed stone, seven-county bedrock sources, geological characteristics, construction aggregate potential, crushed stone, seven-county Use Disclaimer: Every reasonable effort has been made to ensure the accuracy of the factual data on which this map interpretation is based. However, the Department of Natural Resources does not warrant the accuracy, completeness, or any implied uses of these data. Users may wish to verify critical information; sources include both the references here and information on file in the offices of the Minnesota Department of Natural Resources. Every effort has been made to ensure the interpretation shown conforms to sound geologic and cartographic principles. No claim is made that the interpretation shown is rigorously correct, however, and it should not be used to guide engineering-scale decisions without site-specific verification. This information should not be used to establish legal title, boundaries, or locations of improvements. Data Disclaimer The Minnesota Department of Natural Resources makes no representation or warranties, express or implied, with respect to the reuse of data provided herewith, regardless of its format or the means of its transmission. There is no guarantee or representation to the user as to the accuracy, currency, suitability, or reliability of this data for any purpose. The user accepts the data 'as is', and assumes all risks associated with its use. By accepting this data, the user agrees not to transmit this data or provide access to it or any part of it to another party unless the user shall include with the data a copy of this disclaimer. The Minnesota Department of Natural Resources assumes no responsibility for actual or consequential damage incurred as a result of any user's reliance on this data. Please read accompanying document: Minnesota DNR Data and Software License Agreement.pdf Other Compiled Aggregate Mapping GIS Datasets: Sand and Gravel Resource Potential; Crushed Stone Potential; Geologic Field Observations; Test Holes; and Status Map of Completed, In-Progress, and Requested Projects List of Completed DNR Aggregate Mapping Project's Web Pages to Download Maps and Original GIS Data and Metadata at: http://www.dnr.state.mn.us/lands_minerals/aggregate_maps/completed/index.html Aitkin County (2014) Stearns County (2012) Kanabec County (2012) Portions of Northern St. Louis and Northern Lake Counties (2010) Olmsted County (2010) Carlton County and Fond du Lac Reservation (2009) Mille Lacs County (2007) Meeker County (2006) Renville County (2003) Le Sueur County (2003) Itasca County (2003) - Contracted with MGS Benton County (2002) Dodge County (2002) Chisago County (2000) - Contracted with MGS Nicollet County (1999) Blue Earth County (1999) Clay County (1995) Isanti County (1991) Wright County (1989) Sherburne County (1987) true -97.23 -89.53 49.37 43.5 The data is as complete as when the project was completed in 1999. If you need more information please consult the original project data, maps, and metadata found at: http://conservancy.umn.edu/handle/11299/57004 2014-07-23 Seven-County Metropolitan Area, Minnesota The data is as complete as when the project was completed. If you need more information please consult the original project data and metadata found at the Aggregate Mapping Program's completed project page at: http://www.dnr.state.mn.us/lands_minerals/aggregate_maps/completed/index.html see lineage None The dataset presented here was reformatted by the MN DNR in order to distribute it on an online map server of Aggregate Resources data. The orignial data file is called 'agbr99_polygon'. The datafile included codes rather than descriptions. The DNR reformatted the data by adding in descriptions for each code for easier reading and comprehension. Please consult the orignial MGS data, maps, and metadata at: http://conservancy.umn.edu/handle/11299/57004 According to the MGS, information that was used to map bedrock aggregate source units include bedrock outcrops, water-well and soil-boring records, soil maps, and topographic maps. The dataset includes information on bedrock formation, general thickness of the formation, and data reliability. http://www.mngeo.state.mn.us/committee/standards/mgmg/metadata.htm FORMATION Bedrock aggregate sources from MGS M-102 FORMATION Bedrock formation or quarry Prairie Du Chein Bedrock formation QU Quarry BL=Blank Blank record meaning limited bedrock resources THICKNESS Thickness of bedrock formation < 10 Feet > 30 Feet 10-30 Feet NA Not available PROBABLTY Probability or Reliability of the data Excellent Reliability Good Reliability Fair Reliability NA Not Available CS_CLASS Describes the different bedrock aggregate sources from the map legend Prairie Du Chien Dolostone Thicker Than 30 Feet With Excellent Reliability Prairie Du Chien Dolostone Thicker Than 30 Feet With Fair Reliability Prairie Du Chien Dolostone Thicker Than 30 Feet With Good Reliability Prairie Du Chien Dolostone 10 - 30 Feet Thick With Excellent Reliability Prairie Du Chien Dolostone 10 - 30 Feet Thick With Fair Reliability Prairie Du Chien Dolostone 10 - 30 Feet Thick With Good Reliability Prairie Du Chien Dolostone Less Than 10 Feet Thick With Excellent Reliability Prairie Du Chien Dolostone Less Than 10 Feet Thick With Fair Reliability Prairie Du Chien Dolostone Less Than 10 Feet Thick With Good Reliability Quarry: Large quarry, or area of more than one quarry Blank - Limited Potential for Crushed Stone Please consult the orignial MGS data, maps, and metadata at: http://conservancy.umn.edu/handle/11299/57004 Provided below is the attribute table reformatted by the MN DNR's Aggregate Resource Mapping Program. 1.0 20260331 04401800 TRUE