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3RQ Mapping Tool

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To use the 3RQ Mapping Tool, simply click the button below. No logins or downloads are required. Please be aware that the tool may take a few moments to load initially.

Launch the Tool

Three Rivers QUEST (3RQ) has developed a new 3RQ Mapping Tool to compile environmental spatial data from government agencies, 3RQ and its member organizations, NGOs, and more-- all in one convenient place with the goal of studying environmental datasets across state lines within the Upper Ohio River Basin. Data layers are owned and maintained by the data sources (see below) and are updated automatically in the tool, where possible. The tool includes layers in West Virginia, Pennsylvania, Ohio, Maryland, and national datasets organized into the following categories:

  • Water Resources – water quality data, watershed boundaries, hydrography, gauge stations, algal blooms, etc.
  • Resource Extraction – mining, oil and gas wells, discharge points, permit boundaries, etc.
  • Remediation – mining and brownfield reclamation sites, pollution control, hazardous waste treatment, etc.
  • Biological Resources – aquatic and terrestrial vegetation, algal blooms, habitat ranges, land use/cover, biological processes, etc.
  • Infrastructure – dams, waste management, air pollution generating facilities, power plants, water and sewer lines, etc.

Before you go, check out this quick start video to get the most out of the tool!

We're All Ears

This map is in its Beta version; we are accepting feedback and suggestions on additional layers to add. You may also contact if you're interested in discussing the tool.

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Data Sources

The following data sources were utilized to add layers to the 3RQ Mapping Tool. Data layers are owned and maintained by the individual data sources and are updated automatically in the tool if the owner updates the layer.

3RQ - Three Rivers QUEST

ACJV - Atlantic Coast Joint Venture 

AMJV - Appalachian Mountains Joint Venture 


Carnegie Museum of Natural History 


IJDC - West Virginia Infrastructure and Jobs Development Council


MD iMAP - Maryland Mapping and GIS Data Portal

MDDNR - Maryland Division of Natural Resources 

MDE - Maryland Department of the Environment

NBAC - Northern Brownfields Assistance Center

NRCS - Natural Resources Conservation Service

ODNR - Ohio Department of Natural Resources

Ohio Department of Agriculture

Ohio EPA - Ohio Environmental Protection Agency

PADNCR - Pennsylvania Department of Conservation and Natural Resources

PADEP - Pennsylvania Department of Environmental Protection

PASDA - Pennsylvania Spatial Data Access

PFBC - Pennsylvania Fish and Boat Commission 

PGC - Pennsylvania Game Commission 

Pittsburgh Water Collaboratory

POWR - Pennsylvania Organization for Watersheds and Rivers

PNHP - Pennsylvania Natural Heritage Program

Southwestern Pennsylvania Water Network

TNC - The Nature Conservancy 

TU - Trout Unlimited

URI - University of Rhode Island 

USACE - United States Army Corp of Engineers

USEPA - United States Environmental Protection Agency

USFS - United States Forest Service

USGS - United States Geological Survey

USFWS - United States Fish and Wildlife Service


WVDEP - West Virginia Department of Environmental Protection

WVDNR - West Virginia Division of Natural Resources

WVDOH - West Virginia Division of Highways

WVGISTC - West Virginia Geographic Information System Technical Center

WVWDA - West Virginia Water Development Authority

WVWRI - West Virginia Water Research Institute

Additional geospatial databases can be found below: 

Eastern Brook Trout Joint Venture 

Ecosheds (USGS)

EnviroAtlas (EPA)

Flood Inundation Mapper (USGS)

National Water Dashboard (USGS)

Nonindigenous Aquatic Species (USGS)

Ohio Fish Stocking Records (ODNR)

Pennsylvania Macroinvertebrate Taxa Viewer (PADEP)

PFAS in Freshwater Fish (EWG)

PFAS Sites and Community Response (NU, Silent Spring Institute, PFAS-REACH)

Southwestern Pennsylvania Data Landscape Resource (Southwestern Pennsylvania Water Network)

West Virginia Climate Map (WVU Mountain Hydrology Lab)

West Virginia Flood Tool


Red Horse Environmental logo
Duquesne University logo
Colcom Foundation logo
Foundation for Pennsylvania Watersheds