call your local woodwoorkers clubs. if your close they may be interested also post it on craigslist. in the raw form, it is not worth alot, there is cutting ,sawing,milling, plus over 30% waste. if you can figure board feet, right now saw logs are around 300 per thousand, which works out to 30 cents a board foot. finished black walnut sells in upscale lumber yards from 3 to over 10 dollars a board foot. also be carefull the leaves and sawdust are toxic as well as the smoke from burning. good luck.