Show ninety Sur sumatran Voica volcanoes noea the bortot boetig Batisa Ba ilsan ii a series of mount mountain aln ranges running the whole length of the alm idland 0 of sumatra near the western coast splits in the north inco parallel chains which en circlet the bronil broad karo batak plateau and the vast aren area of tuba lake in these part fally explored i anges there have air al ady been al n discovered 00 volcanoes 12 of which ate now active the con coa annl forces of 0 mullin A A lall hall n the national magazine lne |