Experts and BHG readers answer.
What kind of tree
I'd need more information, such as the shape of the leaves and the look of the bark. It could be a mulberry if the berries are plump like raspberries. It could also be a choke-cherry or black cherry, especially if the tree is adolescent and not fully grown yet (hence the 10-foot height you mentioned).
Luke Miller, editor
Garden Ideas & Outdoor Living magazine