I look at a topo for a few minutes and find out how the deer travel the property. Then I take my topo and do a grid search on foot, I find and mark thefollowing.Bedding area's, water holes, food sources (note the food source and at what time it will be available), mark all rubs and scrapes. I compare all of this to my topo's. 300 acre's usually takes about 2 days.