Go on the G&F website and set up an account. Then buy a $30 PP that will be good for the draw in 2015. The PP application period just opened on 7/1 and goes through 9/30. The central part of the state within 100 miles of Casper on to the east and up toward Gillette and the Bufflao/Sheridan are probably the units you'll want to look at. There is some water on public land, but it varies from year to year and a lot will depend on yearly precipitation and whether the land is being leased to graze cattle on. If the latter is the case there will probably be wells with either water going into a metal tank or stock pond.