1.
2003. Indiana Geological Survey. ArcGIS Feature Layer - point dataset.
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2.
Abandoned Sand and Pits: Indiana
2003. Indiana Geological Survey. SAND_GRAVEL_PITS_ABANDONED_IN is a point shapefile that shows the locations of abandoned sand and gravel pits in Indiana. It is derived from an unp...
3.
Active Mines in the Danville Coal Member: Indiana
2010. Indiana Geological Survey. COAL_MINE_ACTIVE_DANVILLE_IN_2010 is a polygon-based ESRI ArcGIS shapefile that shows the location and extent of active surface and underground coa...
4.
Active Mines in the Hymera Coal Member: Indiana
2014. Indiana Geological Survey. COAL_MINE_ACTIVE_HYMERA_IN_2014 is a polygon-based ESRI ArcGIS shapefile that shows the location and extent of active surface and underground coal ...
5.
Aggregate Resource Mapping Program: Minnesota
2014. Minnesota Department of Natural Resources (DNR). The Aggregate Resource Mapping Program (ARMP) began in 1984 when the Minnesota Legislature passed a law (Minnnesota Statutes, section 84.94) to: -...
6.
Aggregate Resources 1997, 2020 and 2040: Minnesota
1997-2040. The Aggregate Resources (sand, gravel and limestone and dolomite) dataset contains three separate shape files for aggregate resources for 1997, 202...
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2014. Minnesota Department of Agriculture. Minnesota has 39 agroecoregions. Each agroecoregion is associated with a specific combination of soil types, landscape and climatic features, and l...
8.
Anthracite Coal Mine Permits: Pennsylvania
2016. Pennsylvania Department of Environmental Protection. Anthracite Coal Mine Permits.
9.
Aquifer Characteristics Of Glacial Drift: Michigan
2017. State of Michigan. This shape file was derived from the 1981 publication of the Hydrological Atlas of Michigan plate 26. Three plates of the Aquifer Characteristics o...
10.
Aquifer sensitivity in shallow aquifers: Indiana
2015. Indiana Geological Survey. Aquifer_Sensitivity_Near_Surface_IN is a raster data layer that displays a reclassified raster data layer of estimated rates of diffuse groundwater...