proj:       0
zone:       0
north:      -0.5
south:      -3000.5
east:       3000.5
west:       0.5
cols:       3000
rows:       3000
e-w resol:  1
n-s resol:  1
top:        1
bottom:     0
cols3:      3000
rows3:      3000
depths:     1
e-w resol3: 1
n-s resol3: 1
t-b resol:  1
