Ranong's leading historical figure was a wealthy Fukien Chinese immigrant, Koh
Su Chiang, who served as regional tax collector during the reign of King Rama V
and was later appointed the first governor of Ranong Province. The Koh family
played an important role in the development of the tin industry on Phuket. The
governor's former residence, located on the northern edge of town, honors the
Koh family with a collection of mementos and ancestor figurines carved with
the names of the deceased.
The mausoleum and graveyard of the Koh family are three km north of town on
Chao Rakathong hill. The primary tomb is approached on a grassy walkway flanked
by eight stone sculptures imported from China in the 19th century..