I WOULD USE CONCRETE BLOCKS AND STICK BOTTOM OF TREE IN THEM TO MAKE THEM STAND UP,THEN GET A GOOD MAP AND LOOK FOR HUMPS,SHARP DROP OFF ,POINTS IN THE DEPTH RANGE THAT U ARE GOING TO MOSTLY FISH TAKING INTO CONSIDERATION THE TIME OF YEAR U PLAN TO BEST BENEFIT FROM THEM,DO NOT LAY THEM DOWN FOR THEY WILL SOON CLING TO BOTTOM AND HAVE NO HEIGHT UNLESS U WANT THEM VERY SHALLOW,ALSO I WOULD NOT PUT THEM WHERE THEY WOULD BE ABOUT A CASTING DISTANT AWAY FROM EACH IF I WAS GOING TO JIG FISH THEM,IF SPIDER RIG THAT WOULD BE FINE BUT AS A JIG FISHERMEN I WANT JUST ONE PILE OF TREES SO I DO NOT HAVE TO SEARCH EACH TREE,PUT THE REST IN OTHER PLACES,ALSO PUT THEM ON DIFFERENT SIDES OF CREEK OR LAKE SO U CAN FISH SOME ON WINDY DAYS WHEN U CAN NOT GET TO THE OTHERS