Web map displaying WI DNR's Wisconsin Leaf-Off Digital Orthophotography imagery layer along with an index layer. This map can be used to identify the year and resolution of each county's imagery in this image service, or as a starting point to create a new map. To open the web map from DNR's GIS Open Data Portal, click the View Metadata: link to the right of the description, then click Open in Map Viewer.*Note that this web map only contains DOPs that Wisconsin DNR has permission to display on a web map. Some counties may have newer DOPs.

Web map displaying Wisconsin DNR-produced Digital Elevation Model (DEM) and Hillshade image services, along with their index layer, in formats that are clickable and can be symbolized and filtered. This map can also be used as a starting point to create a new map. To open the web map from DNR's GIS Open Data Portal, click the View Metadata: link to the right of the description, then click Open in Map Viewer.

Link to DNR's interactive maps by topic. You can use these maps to perform a number of tasks such as zooming in and out, adding GIS data, printing/exporting maps, turning features on and off, etc.*to visit this web page from the DNR Open Data Portal, click the Open button on the right side of the WI DNR Interactive Mapping Applications item page.

This feature layer contains Wisconsin hydro flowlines, area hydrography features and culvert lines created and developed by Wisconsin Department of Natural Resources DNR IT GIS Section as part of a pilot project to remap rivers, lakes and streams in Wisconsin coastal counties and HUC 8 watersheds at a scale of 1:5,000 (also referred to as 5k Hydro). WDNR staff used the most current Lidar DEM for each county as the input to the ACPF toolbox to create accumulation derived flowpaths. Waterbody area features and culverts were developed using Lidar breaklines, existing 24k GIS features, and digitization from multi-year aerial photography. Collection protocols followed USGS NHD digital elevation hydrography creation guidelines.Data DictionaryThis pilot project was funded by the Wisconsin Coastal Management Program and the National Oceanic and Atmospheric Administration, Office for Coastal Management under the Coastal Zone Management Act, Grant # NA21NOS4190086Dataset last Updated 4/22/2025.

This dataset is maintained by Wisconsin Department of Natural Resources. It is a compilation of public sites where boats can be legally launched into public waters in Wisconsin. It includes locations and data for both ramp and carry-in (canoe/kayak) launch sites throughout the state. These public launch sites are owned and maintained by State government (i.e. DNR, DOT, etc.) and local municipalities. All information for non-DNR boat access sites presented herein is not maintained by the DNR. No privately-owned sites are included in this database.This dataset is continually being updated and added to; this item displays the most current edits, however it may contain errors or omissions.

Sensitive Areas of Lakes are designated as Critical Habitat Areas in Wisconsin. These areas comprise of aquatic vegetation identified by the Wisconsin Department of Natural Resources as offering critical or unique fish and wildlife habitat, including seasonal or life stage requirements, or offering water quality or erosion control benefits to the body of water. Wisconsin law mandates special protections for these critical habitats. Critical Habitat Designation is a program that recognizes those areas and maps them so that everyone knows which areas are most vulnerable to impacts from human activity.

Flowlines include all line features from the US Geological Survey's 1:24,000-scale topographic map series such as perennial and intermittent streams etc. A large portion of the WDNR's Waterbody Identification Codes (WBICs) have been added to the linework along with officially recognized water body names from the USGS Geographic Names Information System (GNIS) database. Flowlines were created with M (measures) values to accommodate placement of user data through a linear referencing system.Visit https://www.arcgis.com/home/item.html?id=cb1c7f75d14f42ee819a46894fd2e771 to download the entire 24k Hydro file geodatabase.

Note: This service is only for using online; full resolution downloads are not supported. Hillshade image service created from Digital Elevation Models (DEMs) derived from county-produced LiDAR covering several Wisconsin counties, with a vertical exaggeration factor of 2. This service was last updated in May, 2023. It can be used in conjunction with its associated Index layer, DEM and Hillshade from LiDAR - Index, to determine flight years of source LiDAR and resolution of source DEMs. Also see the Index layer item details for detailed information about counties included in this service and in related services: DEM from LiDAR (Units in Meters) and DEM from LiDAR (Units in Feet).Some areas display as data gaps (white artifacts) when the service is viewed at statewide scales but display normally when zoomed in to scales of approximately 1:1,000,000 or larger. We hope to address the no-data areas and small-scale data gaps in future updates to this service. The source DEMs have not been hydrologically conditioned. The Vertical Datum for the DEMs is NAVD88.

The Hillshade is intended for visualization of the landscape, rather than analysis. When queried, the Hillshade pixel values do not indicate elevation; instead, the pixel values range from 0 to 255 because the image is rendered as an 8-bit greyscale image. If elevation values are needed, use the LiDAR-Derived DEM Imagery Layer.

WI DNR acknowledges the USDA Natural Resources Conservation Service, USGS, FEMA, the Southeastern WI Regional Planning Commission, and the individual counties listed in DEM and Hillshade from LiDAR - Index, for making source data available. For more information, visit https://dnr.wi.gov/feedback/ and choose Geographic Information Systems Data as the subject.

This service is NOT for download but may be viewed in web maps and apps.Georeferenced Statewide Bedrock Geologic Map of Wisconsin, 1982. The Statewide Bedrock Geologic Map of Wisconsin was developed to provide a reliable, accurate and detailed representation of the state’s subsurface geology. It supports a variety of applications, including geological research, land-use planning, resource management, environmental conservation, education, public outreach, and policy development. By offering insights into the composition, structure, and distribution of bedrock formations, the map aids in identifying potential geological hazards and areas of scientific or ecological significance and helps planners, researchers, and decision-makers make informed choices.

The statewide geologic map symbol for each formation is standardized for consistency and can be found in the accompanying legend. The legend provides essential information, including formation names, lithologic descriptions, geologic age, and the symbology used in the dataset. This map and its data were developed by UW Extension-Geologic and Natural History Survey (WGNHS), Meredith E. Ostrom. Visit WGNHS Maps & Publications search for WGNHS maps and contact WGNHS at info@wgnhs.wisc.edu with any questions about this map or data. The map was georeferenced for use in this service by the Wisconsin DNR Bureau of Drinking Water and Groundwater, Water Use Section. For any questions contact the Bureau of Drinking Water and Groundwater GIS Analyst at DNRDGGISAPPS@wisconsin.gov. This data was mapped at a very small scale (ranging from 1:5,000,000 to 1:500,000), making it unsuitable for detailed local analysis or site-specific decision-making. Users are advised to consult local or higher-resolution datasets when conducting detailed analyses or making critical decisions.

This data set is a polygon feature layer representing Wisconsin DNR Geographic Management Units (GMUs). GMU boundaries are subject to review and periodic revision by DNR management.

Note: This service is only for using online; full resolution downloads are not supported. To enable pop ups when opening this in a new web map, then click the ellipsis (three blue dots) under the layer name in the contents, and choose Enable Pop-up.Image service created from Digital Elevation Models (DEMs) derived from county-produced LiDAR covering Wisconsin. Elevation units are in feet. This service was last updated May 2023. It can be used in conjunction with its associated Index layer, DEM and Hillshade from LiDAR - Index, to determine flight years of source LiDAR and resolution of source DEMs. Also see the Index layer item details for detailed information about counties included in this service and in related services: DEM from LiDAR (Units in Meters) and Hillshade from LiDAR.Some areas display as data gaps (white artifacts) when the service is viewed at statewide scales but display normally when zoomed in to scales of approximately 1:1,000,000 or larger. We hope to address the no-data areas and small-scale data gaps in future updates to this service. The source DEMs have not been hydrologically conditioned. The Vertical Datum for the DEMs is NAVD88.WI DNR acknowledges the USDA Natural Resources Conservation Service, USGS, FEMA, the Southeastern WI Regional Planning Commission, and the individual counties listed in DEM and Hillshade from LiDAR - Index, for making source data available. For more information, visit https://dnr.wi.gov/feedback/ and choose Geographic Information Systems Data as the subject.

Wisconsin's Outstanding and Exceptional Resource Water (OERW) designations are designed to include Wisconsin's cleanest waters. The OERW dataset was first developed in the 1990s using narrative descriptions from the state’s OERW designations described in NR102 and the state’s 1:24,000 scale hydrography dataset using 7.5 minute USGS topographic quadrangle maps. The OERW spatial data quality has been reviewed by GIS specialists working with biological field staff and using more detailed landmarks and data over time. The accuracy of the delineations continue to improve with the use of improved technologies and tools. Year 2006 designations were derived by selecting and copying applicable features from the 1:24,000 scale hydrography dataset.

This data set is a polygon shapefile representing Public Land Survey System (PLSS) sections. The data are a subset of the Wisconsin DNR's 'Landnet' database, automated from 1:24,000-scale sources.*DNR staff have added an alpha field for the range direction field in this layer called DIR_ALPHA which uses W and E instead of numerical direction codes.

Wetland and surface water polygon data mapped using LiDAR based sources and high-resolution leaf on/off imagery. Mapped to meet or exceed National Wetland Inventory mapping standards for limited parts of Wisconsin. Data mapped after 2018. Visible below 1:95,000.Funding is provided by the Wisconsin Coastal Management Program, the National Oceanic and Atmospheric Administration, Office for Coastal Management under the Coastal Zone Management Act, Grant #NA19NOS419008, and the USDA Forest Service, Chequamegon-Nicolet National Forest through both the Good Neighbor Authority program in partnership with WDNR Forestry Division and internal appropriated funding. Portions of wetland mapping provided by the Great Lakes Indian Fish and Wildlife Commission in cooperation with the University of Wisconsin - Madison Department of Forestry and Wildlife Ecology and Department of Planning and Landscape Architecture.This layer should be used in conjunction with the following layers:

Wisconsin Wetland Inventory Polygon Layer (stereo-pair mapping)Wisconsin Wetland Inventory Filled/Drained Polygon Layer (stereo-pair mapping)Wisconsin Wetland Inventory Filled/Drained Point Layer (stereo-pair mapping)Wisconsin Wetland Inventory Point Layer (stereo-pair mapping)

For more information on 2013 FGDC Classification of Wetlands and Deepwater Habitats of the United States visit: https://www.fgdc.gov/standards/projects/wetlands/nwcs-2013For more information on Wisconsin DNR Wetland Mapping visit: https://dnr.wisconsin.gov/topic/Wetlands/inventory.htmlFor mapping methodology, visit: https://dnr.wisconsin.gov/sites/default/files/topic/Wetlands/WWI_SOP.pdf

The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and resolution. It defines the areal extent of surface water drainage to a point except in coastal or lake front areas where there could be multiple outlets as stated by the "Federal Standards and Procedures for the National Watershed Boundary Dataset (WBD)" “Standard” (https://pubs.er.usgs.gov/publication/tm11A34). Watershed boundaries are determined solely upon science-based hydrologic principles, not favoring any administrative boundaries or special projects, nor particular program or agency. This dataset represents the hydrologic unit boundaries to the 12-digit level for all HUs coded as being entirely or partially contained in Wisconsin.At a minimum, the HUs are delineated at 1:24,000-scale in the conterminous United States, meeting the National Map Accuracy Standards (NMAS). Higher resolution boundaries are being developed where partners and data exist and will be incorporated back into the WBD. WBD data are delivered as a dataset of polygons and corresponding lines that define the boundary of the polygon. WBD polygon attributes include hydrologic unit codes (HUC), size (in the form of acres and square kilometers), name, downstream hydrologic unit code, type of watershed, non-contributing areas, and flow modifications. The HUC describes where the unit is in the country and the level of the unit. WBD line attributes contain the highest level of hydrologic unit for each boundary, line source information and flow modifications. Staff in the WI DNR GIS Section downloaded the National WBD from the USGS National Map Staged Products Directory on April 13th, 2023: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Hydrography/WBD/National/GDB/. The USGS National WBD metadata indicates a Publication Date of 03-28-2023. WI DNR staff extracted all HUs entirely or partially contained in Wisconsin, using information in the WBD "STATES" attribute. The data were then projected to the Wisconsin Transverse Mercator coordinate referencing system (WKID 3071). This feature class includes a subset of the original WBD attribute data. For information about the complete set of available WBD attributes, refer to the NATIONAL_WBD_GDB.xml metadata file on the USGS National Map Staged Products Directory.

Trout Waters are represented by Class I, Class II or Class III waters. These classes have specific ecological characteristics and management actions associated with them. For more information regarding Trout Classifications, see the Fisheries Trout Class Webpages. (https://dnr.wi.gov/topic/fishing/trout/streamclassification.html)*anglers can also use the classified trout maps for each county at the DNR’s Trout Stream Maps page or use the Trout Regulations and Opportunities User Tool (TROUT) to locate fishing opportunities.

Ecological Landscapes of Wisconsin are aggregations of NHFEU (National Hierarchical Framework of Ecological Units) subsections that have been assigned descriptive names. The Ecological Landscapes of Wisconsin are represented on a May, 1999 map prepared under the direction of the DNR Division of Land Ecosystem Management Planning Team.The NHFEU concept, developed by the USFS, is considered one of the oldest and best-documented ecosystem classification schemes at the federal level. The NHFEU has been refined over the years as new information becomes available to identify lower levels of the hierarchy.

This polygon feature class is a representation of Public Land Survey System (PLSS) quarter sections. The data are a subset of the Wisconsin DNR's 'Landnet' database, automated from 1:24,000-scale sources.*DNR staff have added an alpha field for the range direction field in this layer called DIR_ALPHA which uses W and E instead of numerical direction codes.

This layer was originally developed alongside the development of the Wisconsin Trails Network Plan Update GIS mapping application.

This layer displays Wisconsin network plan corridors, corridors of land as they were laid out in the 2001 Wisconsin Trails Network Plan. Network Plan corridors may be existing rail or utility corridors, roads and easements, or existing natural resource trail corridors such as the Ice Age National Scenic Trail. While these corridors may not currently be classified as trails, if they were converted to trails, they would serve to create an interconnect state trail network for recreation and transportation throughout Wisconsin. The presence of a corridor does not equate to existing plans to convert the corridor to a trail, nor to acquire this land without the applicable partners’ joint interest in doing so. The corridors in this layer feature information on the counties they run through, trails that have been developed on the corridor, and general descriptions of each. This layer was updated for the 2023 Wisconsin Trails Network Plan Update and does not contain information on, or attribute for, individual trails or trail segments, including state trails and should not be used as a substitute for any trails GIS layers, DNR or otherwise. Please reach out to Wisconsin DNR Parks & Recreation or Property Planning section staff with questions on this layer, or email DNRFLPropertyPlanningPublicInput@Wisconsin.gov.

Original Wisconsin Wetland Inventory maps were created using stereo-pair, 9”x9”, B/W (NIR) aerial photography flown at a scale of 1:20000 (1in=1667ft). Each photo covered four Public Land Survey System Sections with each section being approximately 1 square mile. Wetland delineations were drafted onto the photos using stereoscopes. Wetland features and ponds that were too small to draft as a polygon were given a point symbol. The photos were scanned and the wetland information digitized into a GIS. Data mapped between 1988-2016. Visible below 1:95,000. Updated mapping in Wisconsin is ongoing and the goal is to replace all point symbols with a boundary.Funded by the Wisconsin Coastal Management Program and the National Oceanic and Atmospheric Administration, Office for Coastal Management under the Coastal Zone Management Act, Grant #NA19NOS419008.This layer is too large to download statewide from the Open Data site. It is recommended that users download a filtered version of it by zooming into an area of interest on the map interface. If the data are needed statewide, the full file geodatabase is available for download at https://www..arcgis.com/home/item.html?id=200c06fc04074ef7ae24c0b74737b187This layer should be used in conjunction with the following layers to get full coverage:Wisconsin Wetland Inventory Polygon Layer (stereo-pair mapping)Wisconsin Wetland Inventory NWI Polygon Layer (LiDAR based mapping)Wisconsin Wetland Inventory Filled/Drained Polygon Layer (stereo-pair mapping)Wisconsin Wetland Inventory Filled/Drained Point Layer (stereo-pair mapping)For more information on Wisconsin DNR Wetland Mapping visit: https://dnr.wisconsin.gov/topic/Wetlands/inventory.html

For the Wisconsin Wetland Classification System used in the stereo-pair dataset visit: https://dnr.wisconsin.gov/sites/default/files/topic/Wetlands/WWI_Classification.pdf