Well at first I thought Pyracantha but that has hard black thorns. Some kind of Prunus?
I clicked on the pics to get a better look but got this:

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greenlarry,

no thorns on this tree. sorry about the pictures too, I had to make them small to post them on another site, so that is as large as they are. the leaves are about 3 to 4 inches long and 1 1/2 to 2 inches wide, if that helps. When I gathered the tree, all of the leaves had light brown spots and scrapes like the middle leaf of the close up on the last picture. I e-mailed the local Extension Forestry Professor and he said it might possibly be a Prunus Serotina (Black Cherry), I will just have to wait to see if it blooms, but it may not this year because its still rejuvinating from the stress i put it under when i dug it up.
Also the professor listed a few key characteristics of the Black Cherry they are:

1. underside of leaf has rusty hairs along the base of the main vein that runs from the bottom to the tip of the leaf. In spring these hairs are whitish, but will darken with age.

2. if you break a twig, it has a pungent, almost acidic odor.
3. bark is gray and scaly.

i will just have to wait to see if it blooms later in the spring.

I'd say what you've got there is a common wild cherry, the leaves look very much like one. It won't be much good as Bonsai I'm afraid:

They don't respond to pot culture, don't live more than 20-25 years, are prone to die-back and other things. Not really worth the waste of your time, even a cheap pot or some soil.

Bob

head cutter,
I believe you might be right, i thought i'd try, but i am moving in the next 6 months, and when i do, i might plant it back in the ground where i found it instead of trying to figure out how to move the huge thing. and it hasnt recovered well, any abuse i do to it, even training the very bendable stems to curve around the dead wood has caused a lot of leaves to drop, i will keep battling with it, but it wont be a loss if it dies completeley, and it has shown a lot of die back, hense the dead wood look. but at the same time, below the soil it has the most interesting and trunk, very thick and stout, its actually sideways in the pot right now with the very top exposed because if i expose more of the tree it starts to wilt, it has a poor root system still, i was thinking of maybe digging it up, peeling off some of the live bark and rubbing root hormone on it to promote root growth, because last time i dug it up which was a few months ago, it had no feeder roots. i dont know where it is getting any nutrients from.