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1. Hydrographic Lines, North America, 2004
2004. Instituto Nacional de Estadística, Geografía e Informática (Mexico), Geological Survey (U.S.), and Canada Centre for Remote Sensing. This line shapefile shows the coastline, linear hydrographic features, and area hydrographic features in North America. This data set was produced ... Geological Survey (U.S.).
2. 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.
3. 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.
4. 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.
5. Magnetic Field - Secular Variation of the Declination Component for the Epoch 2010.0
2010. National Geophysical Data Center. This map layer shows isoporic lines (lines of equal annual change, or secular variation, in the declination of the Earth's magnetic field), derived... National Atlas of the United States.
6. Magnetic Field - Secular Variation of the Horizontal Component of the Total Field Intensity for the Epoch 2010.0
2010. National Geophysical Data Center. This line shapefile shows lines of equal annual change (secular variation) in the horizontal component of the total field intensity of the Earth's ... National Atlas of the United States.
7. Magnetic Field - Secular Variation of the Inclination Component for the Epoch 2010.0
2010. National Geophysical Data Center. This shapefile shows lines of equal annual change (secular variation) in the inclination of the Earth's magnetic field, derived from the Internatio... National Atlas of the United States.
8. Magnetic Field - Secular Variation of the Total Field Component for the Epoch 2010.0
2010. National Geophysical Data Center. This line shapefile shows lines of equal annual change (secular variation), in the total field intensity of the Earth's magnetic field, derived fro... National Atlas of the United States.
9. Magnetic Field - Total Field Intensity for the Epoch 2010.0
2010. National Geophysical Data Center. This shapefile contains isodynamic lines (lines of equal total intensity of the Earth's magnetic field), derived from the International Geomagnetic... National Atlas of the United States.
10. North America Electric Transmission Lines, 2009
2009. Platts (Firm). Electric Transmission Lines is a polyline theme representing electric power lines of transmission and sub-transmission voltages covering North Amer... Platts.
11. North America (Highways, 2009)
Tele Atlas B.V. and ESRI. Environmental Systems Research Institute (Redlands, Calif.).
12. North America (Interstates, 2009)
Tele Atlas B.V. and ESRI. Environmental Systems Research Institute (Redlands, Calif.).
13. North America (Major Roads, 2009)
Environmental Systems Research Institute (Redlands, Calif.) and Tele Atlas B.V. Environmental Systems Research Institute (Redlands, Calif.).
14. North America (Minor Rivers and Creeks, 2009)
Tele Atlas B.V. and Environmental Systems Research Institute (Redlands, Calif.). Environmental Systems Research Institute (Redlands, Calif.).
15. North America (Natural Gas Pipelines, 2008)
Platts. The Platts Natural Gas Pipelines geospatial data layer contains interstate and intrastate gas pipelines throughout North America. These pipelines ... Platts.
16. North America (Natural Gas Pipelines, Aug. 2008)
Platts. The Platts Natural Gas Pipelines geospatial data layer contains interstate and intrastate gas pipelines throughout North America. These pipelines ... Platts.
17. North America (Natural Gas Pipelines, Dec. 2008)
Platts. The Platts Natural Gas Pipelines geospatial data layer contains interstate and intrastate gas pipelines throughout North America. These pipelines ... Platts.
18. North America (Railroads, 2009)
Tele Atlas B.V. and Environmental Systems Research Institute (Redlands, Calif.). Environmental Systems Research Institute (Redlands, Calif.).
19. North America (State Borders, 2009)
Tele Atlas B.V. and Environmental Systems Research Institute (Redlands, Calif.). Environmental Systems Research Institute (Redlands, Calif.).
20. North America (Transmission Line Constraints, 2008)
Platts. The Platts Transmission Line Constraints geospatial data layer contains lines representing transmission line corridors in the United States that ha... Platts.