That was a very good dig without locater,fair play,how long did it take to locate dog and did ye get a result at the end.That looks about 10ft you must have great hearing or the terrier in question had some voice on him.Dug maybe 6to7ft a few times years back without locater to a brilliant sounder who could mix it aswell.These days im like my old dog half deaf an half blind,thank god for locaters.