So much depends on what's bordering the property. If it's public land, you're normally good. Around here, you never buy rural land without spending a lot of time looking at satellite views of the area. There are a lot of big dairies here and you really don't want to be less than 5 miles downwind of one. We have one 3 miles straight south of us. 2 or 3 times a year, we'll have a dead calm day and the smell will roll north and we get some of it. We can live with it a few times a year but to have to smell it all the time would be unlivable.