I’ve taken the train from Newark airport to Penn Station. Looks a post-apocalyptic wasteland, with crumbling warehouses, factories and tenements and heavily polluted marshlands. Manhattan has to dump its crap somewhere and New Jersey seems to be the end of the sewer.
But most of the farms are going the way of the dodo now, suburbia is spreading. There are, however, vast stretches of pine barrens which could conceivably be developed but nobody has ever bothered so they remain wilderness.