| The State maps in this
series are usually published in three separate editions: (1) base map, (2) highway and
contour map (topographic edition), and (3) shaded-relief map. Most are a scale of
1:500,000, but a few have been released at 1:100,000 or other scales. The features shown are limited to areas within the State. No areas of adjoining States are shown except shorelines in coastal States and major steams and other water areas that form States boundaries. |
 Part of "State of Virginia," base map, 1973, 1:500,000, Lambert conformal conic projection, 62 x 30 inches. |
| Most maps in the series show one State per sheet, but some show more than one State-New Hampshire and Vermont; Connecticut, Massachusetts, and Rhode Island; Delaware and Maryland. (There is also a separate sheet for Connecticut at 1:125,000 scale). | |
| Four
States have more than one 1:500,000-scale sheet: California (2), Michigan (2), Montana (2)
and Texas (4). Two maps of the State of Alaska show Alaska National Interest Lands; shaded relief at 1:5,00.000 and planimetric at 1:2,500,000. Alaska State maps are available at scales of 1:1,584,000, 1:2,500,000, 1:5,000,000, and 1:12,000,000. Alaska is the only State for which there is no 1:500,000-scale map. |
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