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1. United States County Boundaries, 2010

2010. Tele Atlas North America, Inc. and Environmental Systems Research Institute (Redlands, Calif.). United States County Boundaries is a line theme representing the boundary lines of the counties of the United States. ESRI.

2. United States Major Roads, 2010

2010. Tele Atlas North America, Inc. and Economic and Social Research Institute (Reston, Va.). United States Major Roads is a polyline theme representing interstates, U.S. and state highways, major streets, and other major thoroughfares withi... ESRI.

3. United States Rivers (Generalized)

2010. Economic and Social Research Institute (Reston, Va.). United States Rivers (Generalized) is a polyline theme representing the major rivers within the United States. Attribute information includes the n... ESRI.

4. United States State Boundaries, 2010

2010. Tele Atlas North America, Inc. and Economic and Social Research Institute (Reston, Va.). United States State Boundaries is a line theme representing the boundary lines of the states of the United States. ESRI.

5. United States County Boundaries, 2010-2011

2010. TomTom North America, Inc. and Environmental Systems Research Institute (Redlands, Calif.). This line shapefile represents the county boundary lines of the United States at 1:100,000 scale.This layer is part of the 2014 ESRI Data and Maps ... Environmental Systems Research Institute (Redlands, Calif.).

6. U.S. State Boundaries, 2010-2011

2010. TomTom North America, Inc. and Environmental Systems Research Institute (Redlands, Calif.). This line shapefile represents the boundary lines of the states of the United States at 1:100,000 scale. This layer is part of the 2014 ESRI Data a... Environmental Systems Research Institute (Redlands, Calif.).

7. U.S. County Boundaries, 2015

2010. TomTom North America, Inc. and Esri. U.S. County Boundaries represents the boundary lines of the counties and county equivalents of the United States. Esri.

8. Magnetic Field - Declination Component for the Epoch 2010.0

2010. National Geophysical Data Center. This map layer shows isogonic lines (lines of constant declination of the Earth's magnetic field), derived from the International Geomagnetic Refer... National Atlas of the United States.

9. Magnetic Field - Horizontal Component of the Total Field Intensity for the Epoch 2010.0

2010. National Geophysical Data Center. This line shapefile shows lines of equal horizontal intensity of the Earth's magnetic field, derived from the International Geomagnetic Reference F... National Atlas of the United States.

10. Magnetic Field - Inclination Component for the Epoch 2010.0

2010. National Geophysical Data Center. This shapefile shows isoclinic lines (lines of constant inclination of the Earth's magnetic field), derived from the International Geomagnetic Refe... National Atlas of the United States.