Hydrologic Unit Boundaries, 6th level (HUC6) - Oregon

Dec 14, 2010 (Last modified Sep 30, 2025)
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Note the content date (circa 2010) and that there may be changes made since this data was processed. Please visit the National Hydrography Dataset webpage for the most recent data available from the source.

This dataset is HUC6 for OR downloaded from http://www.oregon.gov/DAS/EISPD/GEO/alphalist.shtml#H and attributed with our analysis regions for summary.

This dataset is part of a larger groundwater project across the Pacific NW (Brown et al. 2009) region which has two primary goals: (1) develop tools to identify where and how groundwater is important to biodiversity conservation and (2) assess the pressing threats to the quantity and quality of that groundwater and develop strategies to abate those threats. Data and analyses conducted are intended for use at a statewide scale. Therefore, more detailed mapping may be necessary at local scales. For more information please contact the Oregon Field Office of The Nature Conservancy or see the following website http://www.waconservation.org.
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The Nature Conservancy
Content date:
not specified
Citation:
Brown, J. A. Wyers, L. Bach and A. Aldous. 2009. Groundwater-Dependent Biodiversity and Associated Threats: A Statewide Screening Methodology and Spatial Assessment of Oregon. The Nature Conservancy in Oregon.

Copyright © 2009 The Nature Conservancy. All rights reserved.
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The Nature Conservancy
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Use Constraints:
The Nature Conservancy shall not be held liable for improper or incorrect use of the data described and/or contained herein. Any sale, distribution, loan, or offering for use of these digital data, in whole or in part, is prohibited without the approval of the Nature Conservancy. The use of these data to produce other GIS products and services with the intent to sell for a profit is prohibited without the written consent of the Nature Conservancy. All parties receiving these data must be informed of these restrictions. The Nature Conservancy shall be acknowledged as data contributors to any reports or other products derived from these data.
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Tags:
watershed, hydrologic unit, groundwater
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