GROUND WATER ATLAS of the UNITED STATES
Iowa, Michigan, Minnesota, Wisconsin
HA 730-J
Mississippian aquifer
There are two different files for each illustration
- A 90 ppi JPEG file, suitable for screen viewing is accessed
through the thumbnail image.
- A tiff file is accessed through the "tiff file"
link. All files are Adobe Photoshop. These files have been compressed
with GNU's gzip utility. If your web browser defaults to a screen
display of the file, turn on the "Load to local disk"
option before downloading. Download and process these tiff files
as ascii, not binary.
Ground-water Flow
Figure 64 Map showing ground-water movement in Iowa (242K)
downloadable tiff file J064.tif.gz (1.9MB
compressed)
Figure 65 Map showing ground-water movement in
Michigan (238K)
downloadable tiff file J065.tif.gz (2MB
compressed)
downloadable tiff file J064.tif.gz (1.9MB
compressed) 
downloadable tiff file J065.tif.gz (2MB
compressed)