I tried to do it this summer. Couldn't get a reading from a cheap laser rangefinder. The waving grass threw it off. Works fine however for building cars and other big stuff. Out on the prairies, there wasn't much nearby that would give a reading. Was pretty much useless. Since I'm too cheap to buy a lieca etc, I found a ranging rangematic 1000, which was very cheap ($50 shipped) and will be just fine for gophers. You can find them on ebay, I put a wtb on EE.