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1. Biomass Resource Potential in the United States, Fall 2014

2015. Hart Energy Publishing. This polygon dataset contains estimates of biomass resource potential for the lower 48 states of the United States. The following feedstock categor... Hart Energy Publishing.

2. Biomass Resource Potential in the United States, Spring 2013

2013. Hart Energy Publishing. This polygon dataset contains estimates of biomass resource potential for the lower 48 states of the United States. The following feedstock categor... Hart Energy Publishing.

3. Biomass Resource Potential in the United States, Summer 2014

2014. Hart Energy Publishing. This polygon dataset contains estimates of biomass resource potential for the lower 48 states of the United States. The following feedstock categor... Hart Energy Publishing.

4. Historical United States County Boundaries, 1790

1790. Earle, Carville, Heppen, John, Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology., Otterstrom, Samuel, and Cao, Changyong. This polygon shapefile contains county boundaries for the United States in 1790. Attributes include county and state names as well as FIPS identifi... Geoscience Publications.

5. Historical United States County Boundaries, 1800

1800. Earle, Carville, Heppen, John, Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology., Otterstrom, Samuel, and Cao, Changyong. This polygon shapefile contains county boundaries for the United States in 1800. Attributes include county and state names as well as FIPS identifi... Geoscience Publications.

6. Historical United States County Boundaries, 1810

1810. Earle, Carville, Heppen, John, Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology., Otterstrom, Samuel, and Cao, Changyong. This polygon shapefile contains county boundaries for the United States in 1810. Attributes include county and state names as well as FIPS identifi... Geoscience Publications.

7. Historical United States County Boundaries, 1820

1820. Earle, Carville, Heppen, John, Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology., Otterstrom, Samuel, and Cao, Changyong. This polygon shapefile contains county boundaries for the United States in 1820. Attributes include county and state names as well as FIPS identifi... Geoscience Publications.

8. Historical United States County Boundaries, 1830

1830. Earle, Carville, Heppen, John, Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology., Otterstrom, Samuel, and Cao, Changyong. This polygon shapefile contains county boundaries for the United States in 1830. Attributes include county and state names as well as FIPS identifi... Geoscience Publications.

9. Historical United States County Boundaries, 1840

1840. Earle, Carville, Heppen, John, Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology., Otterstrom, Samuel, and Cao, Changyong. This polygon shapefile contains county boundaries for the United States in 1840. Attributes include county and state names as well as FIPS identifi... Geoscience Publications.

10. Historical United States County Boundaries, 1850

1850. Earle, Carville, Heppen, John, Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology., Otterstrom, Samuel, and Cao, Changyong. This polygon shapefile contains county boundaries for the United States in 1850. Attributes include county and state names as well as FIPS identifi... Geoscience Publications.