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U.S. Time Zones
Time Zone Boundaries
(lower 48).
Datum: NAD83
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MapInfo (2.0 MB)
ArcView (2.7 MB)
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U.S. 1:24,000 Quad Grid
Quadrangle Name, State
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Mapinfo (2.3
MB)
ArcView (1.7
MB)
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Historic Hurricane Tracks
North
Atlantic
Hurricane Tracks from 1851 to 2000. Includes category, and windspeed
Datum: NAD 83
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MapInfo (96 kb)
ArcView (112 kb)
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U.S. Precipitation
Precipitation attributes
and polygons for the lower 48 states. Datum: NAD 83
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MapInfo (4.9 MB)
ArcView (6.7 MB)
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