Navigation Files:

JEBCO.LAM is an ASCII file of navigation in California State Plane 
Zone 6.  The data items are as follows:

Line Name; Shot Point Number; X coordinate; Y coordinate


JEBCO.LL is an ASCII file of navigation in Latitude-Longitude degrees 
decimal.  The data items are as follows:

Line Name; Shot Point Number; X coordinate (lon); Y coordinate (lat)


The first line of each file contains the fortran format of this data.