I will be periodically setting a picture competition to win a copy of 'I Shall Not Be Away Long'. Each competition will have its own stand-alone page, but they'll all be listed here so that you can see the results of each one along with an article about what I discovered when I was setting up the competition.
Competition 1: How many miles of trenches are there on this map? The competition has closed but for more details see Trench Map Competition.