John, you might be surprised at the amount of woods hidden around you. there must be a wooded lot somewhere that you could drive, walk or ride a bike to. talk to the local parks and recreation or library staff to find out about any local parks or public wooded area.
if your search comes up dry, you can always just buy a bundle of firewood from the local supermarket, home depot, hardware store, etc. but as was stated, this is not entirely reflective of sticks and logs in the woods, as this is cut and cured in a controlled environment. in the woods, the deadwood is in all different stages of decay, and there is alot of variety of wood (each wood has slightly different properties)