Resources:

• Integrated Resource Management Applications (IRMA), National Park Service. https://irma.nps.gov/Portal
• The National Map – Hydrography (WMS), United States Geological Survey – https://viewer.nationalmap.gov/services/
• TIGER Shapefiles (State Geographies), United States Census Bureau – https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-line-file.html