GROUND WATER ATLAS of the UNITED STATES
Montana, North Dakota, South Dakota, Wyoming
HA 730-I

Principal aquifers

There are two different files for each illustration

A 72 ppi GIF file, suitable for screen viewing is accessed through the thumbnail image

An eps file, suitable for downloading to be printed or edited is accessed through the "eps file" link. Most files are Adobe Illustrator 6.0, exceptions are noted. 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 eps files as ascii, not binary.

Paleozoic aquifers


Figure 38 Map of Paleozoic aquifers (50K)
editable eps file I038.eps.gz (363K compressed)

Figure 39 Photograph of solution cavities in the Madison Limestone (50K)
This illustration contains a placed image. Download the Adobe Illustrator 6 eps file I039.eps.gz (5.9M compressed) which contains an imbedded Adobe Photoshop 3 (eps) file. You may also want to download the editable Photoshop file I039psh.eps.gz (5.9M compressed)
Figure 40 Photograph of springs created by dissolution of the Madison Limestone (50K)
This illustration contains a placed image. Download the Adobe Illustrator 6 eps file I040.eps.gz (6.8M compressed) which contains an imbedded Adobe Photoshop 3 (eps) file. You may also want to download the editable Photoshop file I040psh.eps.gz (6.8M compressed)
Figure 41 Photograph of a Madison Limestone well flowing due to high artesian pressure (66K)
This illustration contains a placed image. Download the Adobe Illustrator 6 eps file I041.eps.gz (8.1M compressed) which contains an imbedded Adobe Photoshop 3 (eps) file. You may also want to download the editable Photoshop file I041psh.eps.gz (8.1M compressed)


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