All are pdfs, except those marked otherwise.

DRBC Online Map Gallery (webpage)

Delaware River Basin Maps

♦ Basin Illustration

♦ Illustration: A Look at the Delaware River Basin (jpg)

♦ Basin within the Mid-Atlantic Region

♦ Basin: select reservoirs/cities/tributaries

♦ Basin: county boundaries & select cities

♦ Basin: county boundaries & select reservoirs/cities/tributaries

♦ Basin: county & tidal boundaries, with select reservoirs & cities

♦ Basin: Landcover, 2016 (jpg)

♦ Basin: % Impervious Cover, 2016 (jpg)

Delaware River Basin Maps w/Major Reservoir Call-out Boxes

♦ Basin without county boundaries

♦ Basin with county boundaries

♦ Basin with county boundaries & additional info

♦ Basin without county boundaries & with storage info (incl. drought emergency storage availability)

♦ Basin with county boundaries & storage info (incl. drought emergency storage availability)

Delaware River Basin Maps: Shaded Relief

♦ Basin without county boundaries

♦ Basin with county boundaries

SubWatersheds/SubRegions of the Delaware River Basin

♦ HUC 8 Watersheds within the Delaware River Basin

♦ Watersheds of the Delaware River Basin

♦ Physiographic Regions of the Delaware River Basin (jpg)

♦ Delaware Estuary

♦ Non-Tidal Delaware River

♦ Lehigh River Watershed

♦ Christina River Watershed

Maps of DRBC Program Areas

♦ Special Protection Waters Drainage Area

♦ Special Protection Waters Drainage Area, with Wild & Scenic River sections

♦ DRBC Biomonitoring Program Site Location Map

♦ Southeastern Pennsylvania Groundwater Protected Area within the DRB

♦ Southeastern Pennsylvania Groundwater Protected Area: included counties/municipalities

♦ DRBC Water Quality Zones by river mileage

♦ DRBC Water Quality Zones with county boundaries & select cities

♦ DRBC Delaware Estuary Water Quality Zones

♦ Delaware Estuary Water Quality Monitoring Program Locations & DRBC Water Quality Zones

♦ DRBC Water Quality Monitoring Sites

♦ DRBC Map of NPDES Permitted Discharge Sites in the Delaware River Basin

♦ DRBC Map of Surface Water Withdrawals in the Delaware River Basin

Other Maps

♦ Native Territories in the Delaware River Basin

♦ National Wild & Scenic River Stretches within the Delaware River Basin

♦ Furthest Upstream Location of the Salt Front during the 1960s Drought of Record

♦ Extent of Marcellus Shale Formation in the Delaware River Basin

♦ Marcellus Shale Formation and DRBC's Special Protection Waters Drainage Area

♦ U.S. Congressional Districts & Representation in the Delaware River Basin, January 2023

♦ DRBC Recreation Maps for the Delaware & Schuylkill Rivers (webpage)

♦ Mapping Water Resource Landscapes in the DRB (webpage)

♦ DRBC ArcGIS Map Gallery (webpage)

♦ DRBC Interactive Maps (webpage)

♦ DRBC Geographic Information System (GIS) Data (webpage)

♦ Population Served by the Delaware River Basin (jpg)

♦ Total Water Withdrawals in the Delaware River Basin by Sector, 2020 (jpg)

♦ Water Management Schematic for the Delaware River Basin (pdf)

♦ Reductions in Top 10 Point Source Dischargers' PCB Loadings 2005-2016 (jpg)

♦ Land Cover in the DRB, 2019 (jpg; data source: National Land Cover Database)

♦ Chlorides at the Delaware River at Trenton - a timeseries (jpg)

♦ Flow Data Bar Charts for select locations, showing 2018 as record year (webpage)

♦ Flow Data Bar Chart for the Delaware River at Trenton, updated for 2021 (jpg)

♦ Flow Data: visualized using R scripts (webpage)

♦ Water Quality Data: visualized using R scripts (webpage)

♦ Groundwater Well Data for Southeastern Pa. Groundwater Protected Area: visualized using R scripts (webpage)

♦ DRBC Delaware Estuary Monitoring: Dissolved Oxygen Improvements 1967-2021 (YouTube)

♦ Percent of Groundwater Use in the Delaware River Basin: 1997-2017 (YouTube)

♦ Schuylkill River Discharge per Drainage Area: September 1-5, 2021 (YouTube)

♦ Schuylkill River Discharge Profile: Watch the River Rise & Fall, 8/12/21 - 9/5/21 (YouTube)

♦ Delaware River Discharge Profile: Watch the Non-Tidal River Rise & Fall, 8/12/21 - 9/5/21 (YouTube)

♦ USGS Delaware River Dashboard (webpage)

♦ Academy of Natural Sciences of Drexel U: Delaware River Watershed Initiative Water Quality Mapper (webpage)

♦ Shippensburg University: Delaware River Basin Project (webpage)

♦ River Runner: this application by web visualization/developer Sam Learner allows you to click on the map anywhere in the U.S. and follow the "drop of water" as it flows through its watershed. This is a great way to visualize a watershed and how rivers and streams are connected.

♦ Learn more about the Delaware River Basin's native populations: https://native-land.ca/