HIFLD OPEN

Principal Investigator(s):  View help for Principal Investigator(s) National Oceanic and Atmospheric Administration; United States Department of Homeland Security

Version:  View help for Version V2

Name File Type Size Last Modified
metadata.xml application/xml 8.7 KB 11/14/2025 05:46:AM
us-canada-land-boundary-geojson.zip application/zip 146 KB 11/14/2025 05:47:AM
us-canada-land-boundary-shapefile.zip application/zip 142.3 KB 11/14/2025 06:16:AM

Project Citation: 

National Oceanic and Atmospheric Administration, and United States Department of Homeland Security. HIFLD OPEN <US/Canada Land Boundary>. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2025-11-14. https://doi.org/10.3886/E240309V2

Project Description

Project Title:  View help for Project Title HIFLD OPEN
Summary:  View help for Summary This dataset contains U.S. maritime limits and maritime boundaries as developed by NOAA’s Office of Coast Survey. It includes the 12 nautical mile Territorial Sea, 24 nautical mile Contiguous Zone, and 200 nautical mile Exclusive Economic Zone (EEZ), measured from the U.S. normal baseline depicted on NOAA charts.
It reflects an ongoing multi-year project begun in 2002 to re-evaluate the U.S. baseline using the most recent NOAA nautical charts and authoritative supplemental sources.
The dataset also includes boundaries with adjacent or opposite nations and the U.S.–Canada International Boundary on land and in the Great Lakes.
Original Distribution URL:  View help for Original Distribution URL https://hifld-geoplatform.hub.arcgis.com/

Scope of Project

Subject Terms:  View help for Subject Terms Transportation Water; Emergency Preparedness; Disaster Planning; Infrastructure; GIS; HIFLD Open
Geographic Coverage:  View help for Geographic Coverage United States; U.S.–Canada Boundary; U.S. maritime zones
Time Period(s):  View help for Time Period(s) 2002 – 2025
Data Type(s):  View help for Data Type(s) geographic information system (GIS) data; other
Collection Notes:  View help for Collection Notes Archived from the HIFLD Open GIS data repository, which was deactivated on August 26, 2025.


Related Publications

Download this project

Published Versions

V2 [2025-11-14]

V1 [2025-11-14]

Export Metadata

Dublin Core

DDI 2.5

Report a Problem

Found a serious problem with the data, such as disclosure risk or copyrighted content? Let us know.

This material is distributed exactly as received from the data depositor. ICPSR has not reviewed, checked, or processed this material. For additional information about the study, please contact the investigator(s) directly. If you have questions about the accessibility of materials distributed by ICPSR or require further assistance, please visit ICPSR's Accessibility Center.