The Tazewell County Virginia Board of Supervisors will hold a public hearing on a proposed ordinance that would regulate wind turbines and other tall structures on some ridgelines. Supervisor David Anderson says a large turnout is expected. The hearing is scheduled for 6:15 this evening Tazewell Middle School. Dominion and BP Wind Energy North America want to install up to 60 wind turbines along East River Mountain. The ordinance would restrict the development of tall structures along certain ridgelines, including East River Mountain.