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NCRN Hemlock Inventory Data

Metadata Updated: September 25, 2025

​Data associated with the 2015 hemlock inventory project in NCR.

Eastern hemlock (Tsuga canadensis) is a coniferous tree native to the NE and Appalachian regions of the US, with some disjunct populations in the SE US. Eastern hemlock is shade tolerant, long-lived, and slow-growing. It is usually restricted to steep terrain on north facing slopes adjacent to streams, but is also frequently planted in urban and suburban areas, where it grows well outside its natural habitat. Eastern Hemlock has become increasingly uncommon due to impacts from exotic insects: Hemlock Woolly Adelgid (Adelges tsugae) and Elongate Hemlock Scale (Fiorinia externa). As a result of impacts from these insects, as well as impacts from a changing climate, Eastern hemlock is one of the most threatened species of conifers in the Mid-Atlantic.

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 September 11, 2025
Metadata Updated Date September 25, 2025

Metadata Source

Harvested from DOI NPS DCAT-US

Additional Metadata

Resource Type Dataset
Metadata Created Date September 11, 2025
Metadata Updated Date September 25, 2025
Publisher National Park Service
Maintainer
Identifier http://datainventory.doi.gov/id/dataset/nps-datastore-2225011
Data First Published 2015-11-01T00:00:00Z
Data Last Modified 2015-11-01T00:00:00Z
Category Generic Dataset
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 dc5d223b-f8c8-439d-be63-50df9b7b485a
Harvest Source Id d917c1a9-26b7-43ea-b8c5-c77ec750a850
Harvest Source Title DOI NPS DCAT-US
Homepage URL https://irma.nps.gov/DataStore/Reference/Profile/2225011
Old Spatial -80,38.25,-76.2,40
Program Code 010:119, 010:118
Source Datajson Identifier True
Source Hash 58ac045ceac3930af448f0513e8f7786c8be9c635af3cb8e14e4e6ed12f7538b
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -80, 38.25, -80, 40, -76.2, 40, -76.2, 38.25, -80, 38.25}

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