REGULATION Gov.Regulation Decree of the Minister of Forestry & Plantation no 458/Kpts/Um/1978 Date Juli 24,1978 Large (Hektar) 50,4 Technical implementation Unit BKSDA Jawa Timur Note Mount Abang is designated as a nature reserve based on the Decree of the Governor General of Dutch Indies No. 12 Stbl 1937 Number 579 dated 25 October 1937 with