Data Catalog

• Geodetic Control Points 2021

  District of Columbia —

  Control points are captured by land surveyors to create control for orthophotography. These points are captured with survey-grade equipment ensuring the highest...

  • HTML
  • ArcGIS GeoServices REST API
  • OGC WMS
  • CSV
  • ZIP
  • GeoJSON
  • 1 more in dataset

• Geodetic Control Points

  District of Columbia —

  Control points are captured by land surveyors to create control for orthophotography. These points are captured with survey-grade equipment ensuring the highest...

  • HTML
  • ArcGIS GeoServices REST API
  • CSV
  • ZIP
  • GeoJSON
  • KML
  • 1 more in dataset

• Floodplains from 2023

  District of Columbia —

  The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and...

  • HTML
  • ArcGIS GeoServices REST API
  • OGC WMS
  • CSV
  • ZIP
  • GeoJSON
  • 1 more in dataset

• Floodplains Outline

  District of Columbia —

  The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and...

  • HTML
  • ArcGIS GeoServices REST API
  • OGC WMS
  • CSV
  • ZIP
  • GeoJSON
  • 1 more in dataset

• Floodplains

  District of Columbia —

  The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and...

  • HTML
  • ArcGIS GeoServices REST API
  • OGC WMS
  • CSV
  • ZIP
  • GeoJSON
  • 1 more in dataset

• Floodplains Outline from 2023

  District of Columbia —

  The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and...

  • HTML
  • ArcGIS GeoServices REST API
  • OGC WMS
  • CSV
  • ZIP
  • GeoJSON
  • 1 more in dataset

• Floodplains Outline from 2016

  District of Columbia —

  The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk...

  • HTML
  • ArcGIS GeoServices REST API
  • OGC WMS
  • CSV
  • ZIP
  • GeoJSON
  • 1 more in dataset

You can also access this registry using the API (see API Docs).

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