Yep, sounds like you found a dusting 'spot.' I don't like to call it an area because I think of area as a place that turkey frequent go/use. I've seen a dusting spot that was used once in a 3 month span and numerous other spots that were infrequently used. I think this is typical from where I live since it rains nearly every other day and dusting just isn't an option. If you find that this spot is used frequently than you'll know for sure the turkeys come by there nearly every day.