MAP REGISTERING DATA
 
  "jg" = JPG FILE   "w" = WORLD FILE
  "tf" = TIFF FILE  "w" = WORLD FILE
  
MSR Maps
.txt
741500
742200
3753150
3752550   -UTM bounds

MSR Maps
.jgw
0.250000   meters per pixel "x axis"  (left to right)
0.000000   no rotation about the x axis
0.000000   no rotation about the y axis
-0.250000  meters per pixel  "y axis"  (top to bottom)
741500.00000    UTM Easting of upper left-hand corner
3753150.00000   UTM Northing of upper left-hand corner

DRG 1:24,000 topo maps
.tfw
2.43840000   meters per pixel  "x axis"  (left to right)
0.00000000   no rotation about the x axis
0.00000000   no rotation about the y axis
-2.43840000  meters per pixel  "y axis"  (top to bottom)
730123.80668302    UTM Easting of upper left-hand corner
3765852.21391307   UTM Northing of upper left-hand corner

NOTE:  The y coordinates are negative, because UTM coordinates
are measures from west to east and south to north, while computer 
raster images start from the upper left-hand corner 
and run down to the lower right-hand corner.