Craigpo:
The below USGS info site from a Google Search. There were other references (one from a homesteader in Montana that was interesting) but this looks more usable info for planning purposes. I've talked with people who have used the drill method represented by the Lehman's link successfully, but have never done one myself. The technique for accessing a water source depends a lot on the geology of the area you're in. A lot depends on depth of the water table, time of year, resources available to dig, drive, or drill a well, etc.
Anyway, sir, hope this helps.
http://ga.water.usgs.gov/edu/earthgwwells.html