Kalimantan is the biggest province in Kalimantan Island cover
region with a width of 245237 Km2 with number of populations more
than two millions men. East Kalimantan is the richest of natural
sources area in Kalimantan. This region is rich of oil, coal,
gold, wood and natural gas. The most of Natural Resources of East
Kalimantan, have exported and give high contribution for the nation
income. Based on history note, the eldest Kingdom of Hindu in
Indonesia is reside in this area. This conclusion based on note
of inscription that being found in 'Lembah Wahau', in north of
Tenggarong that coming from 5 century. This eldest Empire of Hindu
had mentioned that has done contact with India and Sriwijaya Kingdom.
The substitution of this Hindu Empire is Sultanate Kutai that
emerging at third century with its capital of in Tenggarong. Kutai
then become the center commerce of Denting in this region and
Tenggarong become the biggest and busier town in East Kalimantan,
finally shifted by Samarinda and Balikpapan at 20 century. Kalimantan
was known as one of main oil producer area in Indonesia. The exploitation
of Oilfield in this area have been done since 1897 started from
delta area Mahakam River, while distillation area of oil is focused
In 1913, the oil production in East Kalimantan can yield half
Indonesia's production oil (when below Dutch power) and Balikpapan
reach it's glorious from the abundance of oil production in this
Mahakam River area. Mahakam River is busy river with crowded river
traffic. Mahakam River has become the main roadway in East Kalimantan.
Various vehicles of downstream river go upstream in this river.
From navigable Samarinda, Mahakam River towards finite upstream
of 523 Km passes various towns and villages, which located in
this great river periphery. Public around river build their house
above pillars so that remain to be safe although river water bubble
up when it rains.