An interactive map of contour maps, fishing structure locations, topography and more.

This collection-level metadata provides a general description of historic Iowa coal mine maps scanned and stored as color (24-bit) TIFF images. The maps were usually prepared by a mining engineer and show the details of the mine workings, updated every second year. Most are blue print copies, but a few original linen maps are included in the collection. The maps are currently housed at the Iowa Geological and Water Survey. Each mapped mine site is represented by one to thirty-one maps. Multiple maps are typically sequential with updates being added biennially through the operating life of the mine. In this case, the most recent map was selected for georeferencing unless the map was unusable for any reason. Maps from Des Moines and the surrounding area were georeferenced with world files for a project supported by the Office of Surface Mining Reclamation and Enforcement in 2011-2012.

Color hillshade maps from 2007-2010 high resolution LiDAR terrain mapping project. The Iowa DNR, USDA Natural Resources Conservation Service and other partners funded a multi-year project to collect high-resolution LiDAR terrain data for the State of Iowa. These hillshade maps are a derivative product from 1-meter resolution digital elevation models (DEM) from the LiDAR bare-earth datasets

Represents DNR's Wildlife Management Areas in Iowa. Created and maintained by the Iowa DNR

This data set is representational of the trout streams in Iowa. It is compiled from the "Iowa Trout Fishing Guide" published by the DNR.

This dataset provides a point _location of Iowa Historic Cemeteries. Originally it was based on an Iowa DNR point file marking cemetery locations as found on 7.5 min. USGS quad maps. Additional cemeteries have been added over the years and continue to be added as identified.

(In progress)1930s: This imagery is provided through a project funded by the Iowa DNR in cooperation with the ISU GIS Facility, and USDA Natural Resources Conservation Service. These aerial photos were acquired by the US Department of Agriculture from 1936-1941.1950s: This imagery is provided through a project funded by the Iowa DNR in cooperation with the ISU GIS Facility, and USDA Natural Resources Conservation Service. These aerial photos were acquired by the US Department of Agriculture in the 1950s.1960s: This imagery is provided through a project funded by the Iowa DNR in cooperation with the ISU GIS Facility, and USDA Natural Resources Conservation Service. These aerial photos were acquired by the US Department of Agriculture in the 1960s.1970s: This imagery is provided through a project funded by the Iowa DNR in cooperation with the Iowa USDA Natural Resources Conservation Service, and ISU GIS Facility. The source aerial photos for this map service were acquired by the US Department of Agriculture from May 1967 to October 1974.1980s: This imagery is provided through a project funded by the Iowa DNR in cooperation with the ISU GIS Facility. The source aerial photos for this map service were acquired by the National High Altitude Program (NHAP) from May 1981 to August 1986.1990s: Digital Orthophoto Quads (DOQs) are aerial photos in which displacements caused by camera orientation and terrain have been removed. DOQs combine the image characteristics of a photograph with the geometric qualities of a map. The DOQs on this site are from aerial photos taken from 1990-2000 through the US Geological Survey.

Published to allow joining of spreadsheet data to county geometry in ESRI Maps for Office or Map Analysis Tools, contains Iowa DOM County Code (1-99) as a small integer, Census County FIPS as a both an string and integer. This data was originally created by the Iowa DNR and digitized from USGS 7.5' topographic maps.Click on the data tab above to see an example of expected data. OCIO has a tutorial on how to join your spreadsheet to this Feature layer to create a new feature layer with your county based information. Please contact patrick.wilke-brown@iowa.gov.

This resource is a metadata compilation for 20 map data layers including vector and raster data developed to assess site suitability for heat pump development including karst potential, known wells, contaminant sources, hydrogeologic properties in the Dubuque County area. The data layers are hosted by the Iowa Geological and Water Survey. Data are stored in Web Mercator projection ESPG:102113 and are available as ESRI ArcGIS Server layers at http://programs.iowadnr.gov/arcgis/rest/services/Projects/Geothermal/MapServer. This dataset is delivered as an ESRI file geodatabase. The data were provided by the Iowa Geological and Water Survey under the AASG Geothermal Data project for distribution.

Hillshade maps from 2007-2010 high resolution LiDAR terrain mapping project. The Iowa DNR, USDA Natural Resources Conservation Service and other partners funded a multi-year project to collect high-resolution LiDAR terrain data for the State of Iowa. These hillshade maps are a derivative product from 1-meter resolution digital elevation models (DEM) from the LiDAR bare-earth datasets.

Sites contaminated by hazardous materials or wastes. These sites are those administered by the Contaminated Sites Section of Iowa DNR. Many are sites which are assessed for contamination when property is sold; and others may actually have contamination and may or may not have been remediated. For example, it includes sites for Brownfields, CERCLA Preremedial and Remedial, Chapter 133, and the Land Recycling Program. It does not include RCRA sites which are administered by EPA, or Leaking Underground Storage Tank (LUST) sites (with petroleum contamination) which are administered by the Iowa DNR LUST Section.

This mapping service was designed primarily to help producers choose the best possible sites for proposed animal feeding operations to reduce potential impacts on water resources.

1800s General Land Office Survey Map of Iowa from survey conducted from 1836 through 1859. The source of the images is scanned microfilm of plats from the State Archives. These plats represent maps drawn from the original field notes by the Surveyor General's Dubuque office. This data is provided by the Iowa DNR Geological Survey Bureau.

Data includes medium and large animal feeding operation sites as defined by the U.S. Environmental Protection Agency (EPA). The EPA defines a medium site as a facility with a capacity of 300-999 animal units and a large site as a facility with a capacity of 1,000 or more animal units. Values provided for each animal species type equates to animal units, not the number of animals per head. “Animal unit” means a unit of measurement based upon the product of multiplying the number of animals of each category by a special equivalency factor. For example, swine weighing more than 55 pounds have an AU factor of 0.4, a herd of 750 head multiplied by 0.4 equals 300 animal units. Animal units are defined in IAC 567 Chapter 65. More information regarding calculating animal unit capacity can be found at https://www.iowadnr.gov/Portals/idnr/uploads/afo/fs_mmp.pdf. Note - facilities below 500 animal units in the state of Iowa have no permitting or manure management plan requirements. Therefore, facilities with a capacity of 300-499 shown in this data likely will not have a construction permit or any type of manure management plan.This geodatabase contains 3 feature classes: animal_feeding_operations, AFO_open_feedlots, and AFO_confinements. XML metadata can be found in the gdb folder.

This shape file represents Iowa Historic Cemeteries. Originally it was based on an Iowa DNR point file marking cemetery locations as found on 7.5 min. USGS quad maps. IDCA remapped all of these cemeteries as polygons to show the actual size (area and perimeter). Additional cemeteries have been added over the years and continue to be added as ID'd.

This coverage contains the section lines for the Public Land Survey System (PLSS). These lines form polygons which are labelled for PLSS township, range and section number. Coordinates were digitized from U. S. Geological Survey 7.5' topographic maps (paper copies) using a digitizing program developed in-house by the Geological Survey Bureau, Iowa DNR. The digitizing tablet accuracy was 1/50 inch. Section lines from individual quads were combined and edited using PC Arc/Info.

"Protected Water Area" means a water area permanently designated by the Natural Resource Commission for inclusion in the protected water area system."Protected water area system" means a total comprehensive program that includes the goals and objectives, the state plan, the individual management plans, the prospective protected water areas, the protected water areas, the acquisition of fee title and conservation easements and other agreements, and the administration and management of such areas.The PWA General Plan identifies a voluntary protection zone which is a minimum of 50 feet adjacent to the river and the natural, historical, and/or archaeological areas, and other areas where visual degradation would adversely impact the scenic qualities of the river route.

The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual- chance flood event, and areas of minimal flood risk. The Floodplain Mapping/Redelineation flood risk boundaries are derived from the engineering information Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA).

This imagery is provided through a project funded by the Iowa DNR in cooperation with the ISU GIS Facility. The source aerial photos for this map service were acquired by the National High Altitude Program (NHAP) from May 1981 to August 1986.

This data download is intended to provide information on Iowa's wetlands. In particular, data recorded in the National Wetland Inventory. This data was mapped from the 2002 CIR Aerial Photography.