CLICK HERE to download and print map (Cooke-GraysonCounty.pdf)
Grayson County Survey
Date Acquired: 1983
Instruments: 96 Channel DFS V
Sample Rate: 2 msec
Record Length: 5 sec
Fold: 12
Station Interval: 660 feet
Group Interval: 165 feet
Energy Source: Dynamite
Reprocessing Completed: 2010
