It's a banana spider. Golden Orb Weavers are a particular type of banana spider, and their abdomen looks a bit different from that.
IIRC they are the largest spiders indigenous to N America outside of the tarantula family.
They have a horrendous bite -- imagine taking a pair of wire clippers and digging them into your skin and snipping -- that's about what it feels like.
They are FAST when going after prey. They are also fast building their webs.
I had one pop up going from my house to a birch tree in the front yard -- a good 20-25 feet, two feet tall, at head height. And it popped up over night. I was walking Chopper, and he was digging at something and I was paying attention to him and walked right into it. If you can imagine a pair of women's stockings stretched from the house to the tree, the web felt that strong. I caught some motion off to my left, looked up and the thing from IT was bearing down on me at mach 2. I pointed my knife at her (I think it was my AK bowie) and said I'm too big for you." She stopped, raised her front legs and spread her fangs. Women.
That's another thing: for insects and arachnids, the big, colorful ones are the FEMALES. The male banana spider is a little wider in leg span than a quarter, whereas the females have a leg span close to the size of my palm, which is 4.25 or so inches across.
Best thing about these spiders is they don't really mess with you if you leave them alone. I love having them around because I noticed a marked decline in insect activity in my yard when they move in.
I never got a picture of it, but we have a pretty freaky sight along one of the roads here. Driving along the road, you look up and see spider webs strung from the top to the bottom power line. And it's MILES of road where these webs are right next to each other like a huge net. It's pretty cool.