BEIJING, 30 January (BelTA - Xinhua) - The lantern fair in underground courtyard in Shanzhou District of Sanmenxia, central China's Henan Province is expected to be officially open for public on February 5 to celebrate the upcoming Spring Festival. Underground courtyard in Shanzhou, unique residence in mountainous areas of western Henan, is listed as the national intangible cultural heritage in 2011.