Here is a link to the search page for The Wyoming Water Bibliography in the Wyoming Water Resources Data System . That will give you over 1,400 documents. Here's an example of a model groundwater protection program from South Dakota found on the EPA web page . Here is an EPA survey result of surface and groundwater quality in Wyoming. If you like water there's some great local waterfall screen savers available at Ron Glaser's Laramie-based home page.
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Most of the graphics on this page can be found at Bells and Whistles , or at The Clipart Connection .