this is chuck denney reporting. >> here is some other subterranean facts from chuck. at 33 miles long, blue springs cave in white county is the longest in the state. the deepest is bulcade at about a thousand feet n either case, no thank you. >>> up next, we launch a special program to help you plan for the next generation. >>> enter at simpleandtruechallenge.com for the chance to win a one year lease for a versatile tractor. simple, reliable, easy to maintain. operator, what >>> as a farm operator, what does the future hold four your business, your family hold stead and your -- homestead and your loved ones? when you're set to retire, who will take over? these are important questions facing america's farmers and ranchers west. hope to give you some answers. farm journal media including our magazines, web sites and tv have made it a mission to help farmers develop an action plan. we call it the legacy project. teaming one certified financial planner and farm journal columnist kevin stafford, we will document the challenges and opportunities families face to develop th