Rick Saltus
15 October 1997

README.TXT FILE FOR PLOT TRANSFER DIRECTORY

This directory contains binary HPGL format plot files for aeromagnetic
maps that span the state of Alaska.  See the web site for index maps
and more information.  These plot files will plot on plotters such as
the HP750.  The sizes of the resulting maps vary, but are mostly about
2 ft x 3 ft.  The state maps are at 1:2,500,000 scale, the regional
maps are at 1:500,000 scale.

These plot files have been compressed using the "gzip" public-domain
utility.  Before plotting these files you will need to uncompress them.
Information on gzip is available at:

 http://www.maths.lancs.ac.uk/~smithdm1/GNU/GNUWeb/gzip.html
   (unix and PC DOS versions)

 http://www.winzip.com/
   (PC windows version)

 http://www.1source.com/tools/compress.html
   (contains link to download Mac gzip)

-----------------------------------------------------

Listing of plot files:

Whole State Maps (scale 1:2,500,000)

 akmerge.gz - color contour map of merged aeromagnetic data for Alaska
 akcomp.gz - color contour map of composite aeromagnetic data for Alaska

Regional Maps (scale 1:500,000)

 map#_m.gz (19 maps) - color contour maps of merged aeromagnetic data
 map#_c.gz (19 maps) - color contour maps of composite aeromagnetic data

Regional Map Index

71          ------------------------
            | (18)      | (19)     |
            | Barrow    | Barter   |
            |           |  Island  |
  -----------------------------------
  | (15)     | (16)     | (17)      |
  | Kotzebue | Selawik  | Yukon     |
  |          |          |           |
  ---------------------------------------------
  | (11)     | (12)     | (13)     | (14)     |
  | Nome     | Galena   | Fairbanks| Eagle    |
  |          |          |          |          |
  -------------------------------------------------------
  | (6)      | (7)      | (8)      | (9)      | (10)    |
  | Bethel   | Sleetmute| Anchorage| Yakutat  | Haines  |
  |          |          |          |          |         |
  -------------------------------------------------------
  | (1)      | (2)      | (3)      | (4)      | (5)     |
  | Chignik  | Kodiak   | W. Gulf  | E. Gulf  | Juneau  |
  |          |          | of Alaska| of Alaska|         |
56-------------------------------------------------------
 165                                                   130