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1. 1:1,000,000-Scale Coastline of the United States, 2014

2014. National Atlas of the United States. This line shapefile includes Global Map data showing the coastline of the United States, Puerto Rico, and the U.S. Virgin Islands. The United State... National Atlas of the United States.

2. 1:1,000,000-Scale Contours of the Conterminous United States

2014. Geological Survey (U.S.). This line shapefile shows elevation contour lines for the conterminous United States. The map layer was derived from the 100-meter resolution eleva... National Atlas of the United States.

3. 1:1,000,000-Scale County Boundary Lines of the United States, 2014

2014. Geological Survey (U.S.). This polygon shapefile contains the county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. This layer was derived from t... Geological Survey (U.S.).

4. 1:1,000,000-Scale Ferries of the United States, 2014

2014. National Atlas of the United States. This map layer portrays the ferries on major roads in the United States and Puerto Rico. Ferries are ships that carry vehicles, passengers, and car... National Atlas of the United States.

5. 1:1,000,000-Scale Railroads, United States, 2014

2014. National Atlas of the United States. This line shapefile represents railroads in the conterminous United States and Alaska for 2014 at 1:1,000,000 scale. This is a revised version of t... National Atlas of the United States.

6. 1:1,000,000-Scale Streams of the United States, 2014

2014. Geological Survey (U.S.). This map layer shows streams of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer was produced primarily from the Medium-R... Geological Survey (U.S.).

7. Global Map: 1:1,000,000 Major Roads, United States, 2014

2014. National Atlas of the United States. This line shapefile includes Global Map data showing the major roads in the United States, Puerto Rico, and the U.S. Virgin Islands. The data are a... National Atlas of the United States.

8. Global Map: 1:1,000,000-Scale Canals and Aqueducts of the United States, 2014

2014. National Atlas of the United States. This line shapefile includes Global Map data showing the canals, aqueducts, and the Intracoastal Waterway in the United States, Puerto Rico, and th... National Atlas of the United States.

9. Global Map: 1:1,000,000-Scale Ferries of the United States, 2014

2014. National Atlas of the United States. This line shapefile includes Global Map data showing ferries on major roads in the United States and Puerto Rico. Ferries are ships that carry vehi... National Atlas of the United States.

10. Global Map: 1:1,000,000-Scale Major Roads of the United States, 2014

2014. National Atlas of the United States. This map layer portrays the major roads in the United States, Puerto Rico, and the U.S. Virgin Islands. The file was produced by joining the indivi... National Atlas of the United States.

11. Global Map: 1:1,000,000-Scale Political Boundary Lines of the United States, 2014

2014. National Atlas of the United States. This line shapefile includes Global Map data showing the counties and equivalent entities of the United States, Puerto Rico, and the U.S. Virgin Is... National Atlas of the United States.

12. Global Map: 1:1,000,000-Scale Railroads of the United States, 2014

2014. National Atlas of the United States. This line shapefile includes Global Map data showing railroads in the conterminous United States and Alaska. The data are a modified version of the... National Atlas of the United States.

13. Global Map: 1:1,000,000-Scale Streams of the United States, 2014

2014. National Atlas of the United States. This line shapefile includes Global Map data showing streams in the United States, Puerto Rico, and the U.S. Virgin Islands. The data are a modifie... National Atlas of the United States.

14. 1:1,000,000-Scale Major Roads of the United States, 2012

2012. Geological Survey (U.S.). This map layer portrays the major roads in the United States, Puerto Rico, and the U.S. Virgin Islands. The file was produced by joining the indivi... Geological Survey (U.S.).

15. 1:1,000,000-Scale Railroads, United States, 2012

2012. National Atlas of the United States. This line shapefile represents railroads in the conterminous United States and Alaska for 2012 at 1:1,000,000 scale. This layer is part of the 1997... National Atlas of the United States.

16. 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.

17. 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.

18. 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.

19. 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.

20. 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.