15 year old clump of bamboo

A friend of mine helped me move a 3X3 foot clump of Phyllostachys nuda from my parents' house to this location sometime back in the mid to late 90's. Since then, it's been given free rein to expand in two directions. I keep it in check with mowing on the other two sides. As you can see by the dwarfed-looking deer in the picture, it's making a stately grove now. Its really cool to walk around inside of it. The deer must think so too because they're always either playing games in and out of it, or sleeping on the leeward side.