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    • ASIS GPS Shorelines

    Metadata Updated: January 25, 2026

    These data represent a series of mean high water shorelines collected at Assateague Island National Seashore (ASIS), appended into one file geodatabase (1993-2022). Post-2022 surveys can be found on https://asis-nps.opendata.arcgis.com/. The features have been assembled / collected in support of the Northeast Coastal & Barrier Inventory and Monitoring Network's Ocean Shoreline Position Monitoring Program. The shoreline surveys are collected using a sub-meter GPS receiver mounted on an ATV or UTV starting in August of 1993 continuing through present day. Shorelines are grouped in Feature Datasets by the season the data were collected. Depending on the time of year and intended purpose, some surveys contain ocean, inlet and bay shorelines, while some surveys only contain ocean shorelines.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date January 14, 2026
    Metadata Updated Date January 25, 2026

    Metadata Source

    Harvested from DOI NPS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 14, 2026
    Metadata Updated Date January 25, 2026
    Publisher National Park Service
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/NPS_DataStore_2174501
    Data First Published 2025-11-19T00:00:00Z
    Data Last Modified 2025-11-19T00:00:00Z
    Category Geospatial
    Public Access Level public
    Bureau Code 010:24
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://ddi.doi.gov/nps-data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 3b21e403-d644-4205-95d5-fbfdba6517d4
    Harvest Source Id d917c1a9-26b7-43ea-b8c5-c77ec750a850
    Harvest Source Title DOI NPS DCAT-US
    Homepage URL https://irma.nps.gov/DataStore/Reference/Profile/2174501
    Metadata Type geospatial
    Old Spatial -75.41536,37.85113,-75.0914,38.3257141
    Program Code 010:118, 010:119
    Source Datajson Identifier True
    Source Hash 130b009887790ba537bbbc5a27dd121066ad35730f9ef15d106a91baf78c4949
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -75.41536, 37.85113, -75.41536, 38.3257141, -75.0914, 38.3257141, -75.0914, 37.85113, -75.41536, 37.85113}
    Temporal 1993-08-11/2025-01-01

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