TT160 UP-I 1981
Below are links to the electronic files and Readme files
TT160 180 stations
TT160 Readme
W8305A Astoria Canyon 1983
Below are links to the electronic files and Readme files
W8305A 32 stations
W8305A Readme
W9010 Columbia River 1990
Below are links to the electronic files and Readme files
W9010 133 stations
W9010 Readme
W9101B Columbia River 1991
Below are links to the electronic files and Readme files
W9101B 297 stations
W9101B Readme
Last updated July 15, 2013.