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#1 Federal

Administrative Boundaries Centroids of National Park System Units

Organization: Department of the Interior
Dataset Last Updated: July 08, 2026 at 12:00 AM

National Park Service Unit Centroid Points.

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xml

Search relevance: 1.00 | Views last month: 25 | Catalog Last Checked: August 01, 2026 at 04:09 AM

#2 Federal

20200110-DO-NOT-USE-Test-Copy-NGDAID-16-Administrative Boundaries of National Park System Units 9/30/2019 - National Geospatial Data Asset (NGDA) NPS National Parks Dataset-DO-NOT-USE

Organization: Federal Geographic Data Committee
Dataset Last Updated: September 30, 2019

National Park Service unit boundaries.

zip

Search relevance: 1.00 | Views last month: 16 | Catalog Last Checked: August 03, 2026 at 08:35 AM

#3 Federal

Barrierless Reactions with Loose Transition States Govern the Yields and Lifetimes of Organic Nitrates Derived from Isoprene

Organization: U.S. Environmental Protection Agency
Dataset Last Updated: June 16, 2017

The attached extensive computational chemistry dataset was succinctly presented by Piletic et al. (Journal of Physical Chemistry A, 2017, DOI: 10.1021/acs.jpca.7b08229) and involves detailed...

xml

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 03, 2026 at 12:42 AM

#4 Federal

Dataset for figures published in the Impact of particulate nitrate photolysis on air quality over the Northern Hemisphere

Organization: U.S. Environmental Protection Agency
Dataset Last Updated: April 10, 2023

Dataset for figures published in Impact of particulate nitrate photolysis on air quality over the Northern Hemisphere. This dataset is associated with the following publication: Sarwar, G., C....

Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: August 03, 2026 at 12:50 AM

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Administrative Boundaries Centroids of National Park System Units

20200110-DO-NOT-USE-Test-Copy-NGDAID-16-Administrative Boundaries of National Park System Units 9/30/2019 - National Geospatial Data Asset (NGDA) NPS National Parks Dataset-DO-NOT-USE

Barrierless Reactions with Loose Transition States Govern the Yields and Lifetimes of Organic Nitrates Derived from Isoprene

Dataset for figures published in the Impact of particulate nitrate photolysis on air quality over the Northern Hemisphere