proj:       1
zone:       18
north:      4391490
south:      4385100
east:       551890
west:       547000
cols:       245
rows:       320
e-w resol:  19.95918367
n-s resol:  19.96875
top:        1
bottom:     0
cols3:      245
rows3:      320
depths:     1
e-w resol3: 19.95918367
n-s resol3: 19.96875
t-b resol:  1