Google dewberries and visit the various kinds. The one called swamp dewberries looked sort of the same. We had some of those in Northern Wisconsin. dooley
Ok, I've FINALLY figured out what this is! Aralia Racemosa or American Spikenard. http://plants.usda.gov/java/profile?symbol=ARRA Droopy, you were very close!!
They dont look like blackberrys at all. It is a tall bush and the berry is more bunched in each berry.. Dont eat if one isnt sure. We wanna see you here longer.. :-D