Most homeowners unaware of the market are surprised to learn that mills usually do NOT want residential logs (Too big of a chance of nails, etc. in the wood). If you are lucky enough to find a small local mill willing to take it, they will probably let you dump it for free. Your chances of actually getting money out of a log are near nil.
Believe me, after 15 years in the tree business, and all the money I have spent dumping wood, I have only had ONE job where we got paid for logs. I had 16 pine trees to remove, and we used a crane. A buddy with a tri-axle dump truck took the logs to the pulp mill and kept the money in exchange for the hauling. So actually, I didn't even get paid, just got the hauling for free.