calculating vertical distance to water

[Bret J. Ruby, GBL, 855-0522]

I would like to calculate the minimum vertical distance to nearest
water for a series of archaeological sites. I have the site list, 
elevation data and a hydrology net, but can't seem to figure out
how to make the actual calculation...

I'd appreciate any suggestions... Thanks, bjr


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Bret James Ruby			         Voice:        (812) 855-9544
Glenn A. Black Laboratory of Archaeology   Fax:        (812) 855-1864
9th and Fess Streets	                Bitnet:         bruby at indiana
Bloomington, IN   47405		      Internet:     bruby at indiana.edu
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