That is actually really cool. I had no idea we had trees that old.
The Big Tree at Goose Island State Park was named the State Champion Coastal Live Oak (Quercus virginiana) in 1969, and is one of the largest in the nation.
http://tpwd.texas.gov/state-parks/goose-island/the-big-tree
Trunk circumference: 35 feet 1.75 inches
Age: In excess of 1,000 years
Sorry, hit return too quick.
Methuselah, a bristlecone pine tree from Californias White Mountains, is thought to be almost 5,000 years oldand the oldest non-clonal tree in the world. The exact location of the gnarled, twisted Methuselah is a Forest Service secret, for its protection (that might not be it above). In 1964, a slightly older tree by the name of Prometheus was accidentally felled by a scientist who didnt realize the tree was as old as it was.
http://mentalfloss.com/article/29879/6-oldest-trees-world