If you want the best book ever written on land treasure hunting get a long out of print copy of Karl Von Mueller's "Treasure Hunter's Manual #7". there is one available on ebay right now, item #381597503786. I cut my detecting teeth with this book 45 years ago and it is still the best. Tips like if you find a virgin old school yard the FIRST place to hunt is by the swings, and many more. I am not the seller, it is in auction format, the last one sold for about $27.00. By the way what part of MI are you in? I have family in southern MI down near the OH and IN borders.