Geographical Location of Smallville

Or rather, Reeve's Dam, as per the latitude and longitude given to Lois by Wes in Smallville 6x21-22, here's an image and a link. (Note that there is no water at the precise location indicated, although there are two minor streams not far from it. For the sake of geographical accuracy, how difficult would it have been to place the dam on say, I don't know, a river in the general area?)
Latitude: 38° 52 Min. 00 Sec.
Longitude: -95° 32 Min. 00 Sec.