There is no easy answer: you need to divest yourself of the land somehow, which, as you evidently know, is not easy in this case. Possibilities include seeing if you can donate the land to the state or to a conversation group or charity. You might also look into getting the taxes re-appraised in the meantime--if the land is valueless, that should affect the tax valuation.  If the regulations preventing you from selling or using the land were put in place after you inherited it, may be able to argue that the land was effectively condemmed and force the state to buy it from you. You should consult with a real estate attorney about this situation, to explore your options.