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We have reorganized our reports and data sets to make it easier to find the information you need. Select a keyword below to find all reports and data sets associated with it, or browse all of our downloads

Featured GIS download

Ecoregional Assessment Geodatabase for Western North America

GIS data set that aggregates the information from 19 ecoregional assessments across western North America packaged as a personal geodatabase for use with ArcGIS 9.x and Microsoft Access software products. Note: this data set replaces the six-ecoregion geodatabase formerly posted on this site.

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Most downloaded report

Overview: Ecoregion-Based Conservation Assessments of the SW United States and Northwestern Mexico

Provides an overview of ecoregional assessments and the process used to create a standardized, cross-ecoregional dataset for six ecoregions within and adjacent to Arizona.

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Newest downloads

Arizona Natural Infrastructure Composite (May 2008) Download Ecological Implications of Verde River Flows (February 2008) Download State of the Las Ciénegas NCA, Part III: Condition of Riparian Habitats and Channel Geomorphology (February 2008) Download San Pedro River Wet-Dry Maps (February 2008) Download Ecoregional Assessment Geodatabase for Western North America (January 2008) Download