Description: <DIV STYLE="text-align:Left;"><P><SPAN>This spatial dataset of sand and gravel resource potential is based on a compilation of GIS aggregate resources (sand and gravel, crushed stone) reconnaissance scale data spanning twenty county projects completed over a number of years (1987-present) by the DNR's Aggregate Resource Mapping Program (ARMP). The attribute data available varies as a result of the varied years of completion and changes in databases structure and verbiage over time. The past project GIS data has been loaded into the current file geodatabase used by the Aggregate Resource Mapping Program. Therefore the data from the most recent completed counties (Kandiyohi, Aitkin, Stearns, Kanabec, Olmsted) have the most complete attribute table, while the earlier mapped counties (Sherburne, Wright, Isanti) have limited attribute data. Digital sand and gravel resource potential has been delineated for the Sherburne County Project completed in 1987 and continues today.</SPAN></P><P><SPAN>This spatial dataset can consist of information about the geology, geological characteristics, and sand and gravel potential for 21 counties in Minnesota. Recent completed maps include data fields related to the surficial geology of the map unit, including a major sediment, minor sediment, landform, surficial geology description, probability (unit certainty), depositional variability, and lobe provenance. Five fields relate to sand and gravel characteristics, including sand and gravel probability, quality, texture, overburden thickness, and sand and gravel thickness. These characteristics were used to calculate the aggregate potential of the map unit for sand and gravel.</SPAN></P></DIV>
Service Item Id: c2bab79d082f4fb79fc6dcf887b4f8d2
Copyright Text: Minnesota Department of Natural Resources, Division of Lands & Minerals
Unique Value Renderer: Field 1: MAP_CLASS Field 2: N/A Field 3: N/A Field Delimiter: ; Default Symbol:
N/A
Default Label: N/A UniqueValueInfos:
Value: Primary Source: Water table is more than 20 feet below the land surface with Excellent to Good Quality Label: Primary Source: Water table is more than 20 feet below the land surface with Excellent to Good Quality Description: N/A Symbol:
Value: Primary Source: Water table is less than 20 feet below the land surface with Excellent to Good Quality Label: Primary Source: Water table is less than 20 feet below the land surface with Excellent to Good Quality Description: N/A Symbol:
Value: Primary Source: Water table is more than 20 feet below the land surface with Good to Moderate Quality Label: Primary Source: Water table is more than 20 feet below the land surface with Good to Moderate Quality Description: N/A Symbol:
Value: Primary Source: Water table is less than 20 feet below the land surface with Good to Moderate Quality Label: Primary Source: Water table is less than 20 feet below the land surface with Good to Moderate Quality Description: N/A Symbol:
Value: Primary Source: Water table is more than 20 feet below the land surface with Moderate to Poor Quality Label: Primary Source: Water table is more than 20 feet below the land surface with Moderate to Poor Quality Description: N/A Symbol:
Value: Primary Source: Water table is less than 20 feet below the land surface with Moderate to Poor Quality Label: Primary Source: Water table is less than 20 feet below the land surface with Moderate to Poor Quality Description: N/A Symbol:
Value: Large Gravel Pit, or an area of more than one gravel pit Label: Large Gravel Pit, or an area of more than one gravel pit Description: N/A Symbol: