LHAASO (Large High Altitude Air Shower Observertory)
The LHAASO [1] plans to build a hybrid extensive air shower (EAS) array with an area of about 1 km2 at an altitude of 4410m a.s.l. in Haizi Mountain, Daocheng County, Sichuan Province. The LHAASO detector consists of an EAS array covering an area of 1.3 km2 (KM2A), 78,000m2 water Cherenkov detector array (WCDA) and 12 wide-field air Cherenkov/fluorescence telescopes (WFCTA),