Douglas Projects 6005A and 6053A

A survey flown in 1974-1975 is combined here with one flown in 1977 and 1978.
The data are not corrected for diurnal.  The report, GJBX-023(79), volume 1, 
gives some details about how the data were combined.

The western part of tie lines 6 and 16 were probably flown in 1975.