The ardent wishes of H.M. King Bhumibol to provide a better living standard for the Thais in remote areas have spread to every corner of the country as are evidenced by more than 3,000 royal development projects. About 100 km from Bangkok, on Highway 304 in Khao Hin Son Sub-county, Phanom Sarakham County, Chachoengsao Province, is situated Khao Hin Son Royal Development Study Centre, which is the earliest royal study centre (among the existing six) established to solve natural resource and environmental problems.