遇见数据集

fcounty2m: FIA county boundaries of the Southern United States at 1:2,000,000 scale

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NIAID Data Ecosystem2026-05-16 收录
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This coverage was identified on the USGS Water Resources NSDI Node site at https://www.usgs.gov/ngpo/. The coverage contains the county boundaries of the southern region of the continental United States. These boundaries were derived from the Digital Line Graph (DLG) files representing the 1:2,000,000 scale map in the National Atlas of the United States (please see USGS_Procedures_Used in Process Steps below).The data was then modified by USDA Forest Service Personnel for use in the Southern Forest Resource Assessment and exported to a shapefile (please see USDA Forest Service Modifications in Process Steps below). This shapefile is used as a base map for a variety of applications. Metadata was updated on 6/08/2011 when data became available through this archive. Minor metadata updates made on 04/18/2013. Minor metadata updates on 12/06/2016. Data were originally made available at //www.srs.fs.usda.gov/sustain/data/.

创建时间:
2011-01-02
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