Ratanakiri or Ratanak Kiri is a province of northeast Cambodia. It borders the provinces of Mondulkiri to the south and Stung Treng to the west and the countries of Laos and Vietnam to the north and east, respectively. The province extends from the mountains of the Annamite Range in the north, across a hilly plateau between the Tonlé San and Tonlé Srepok rivers, to tropical deciduous forests in the south. In recent years, logging and mining have scarred Ratanakiri's environment, long known for its beauty.
For over a millennium, Ratanakiri has been occupied by the highland Khmer Loeu people, who are a minority elsewhere in Cambodia. During the region's early history, its Khmer Loeu inhabitants were exploited as slaves by neighboring empires. The slave trade economy ended during the French colonial era, but a harsh Khmerization campaign after Cambodia's independence again threatened Khmer Loeu ways of life. The Khmer Rouge built its headquarters in the province in the 1960s, and bombing during the Vietnam War devastated the region. Today, rapid development in the province is altering traditional ways of life.
Ratanakiri is sparsely populated; its 184,000 residents make up just over 1% of the country's total population. Residents generally live-in villages of 20 to 60 families and engage in subsistence shifting agriculture. Ratanakiri is among the least developed provinces of Cambodia. Its infrastructure is poor, and the local government is weak. Health indicators in Ratanakiri are extremely poor; men's life expectancy is 39 years, and women's is 43 years. Education levels are also low, with just under half of the population illiterate.

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Yeak Laom Lake Yeak Laom Lake is a crater lake and a tourist destination in Yeak Laom commune, Ban Lung District, Ratanakiri Province, north-eastern Cambodia. It is pronounced in English as "Yak Lom." It is about 5 kilometers south of Banlung provincial town, and is located in a protected area. In 2012, Yeak Laom Lake was selected in the list of the 15 most beautiful crater lakes in the world. Around 700,000 years ago, a volcanic eruption resulted in the creation of the lake in Ratanakiri's mountain region. The shore of Yeak Laom Lake forms an almost perfect circle. It is 800 meters in diameter, and about 48 meters deep. Its shape and depth are due to its volcano’s origin.	Eisey Patamak Mountain Phnom Eysei Patamak, which is also known as Phnom Svay,is about 2 kilometers west of Ban Loung provincial town. At the foot of the mountain is Wat Isana Rattanaram, where villagers living in Ban Loung come to worship. On the top of the mountain there is a large statue of the reclining Buddha reaching nirvana. It was built in 1994. The top of the mountain affords visitors a picturesque view of Ban Loung provincial town. The temperature at the top can be cool, however, even during the hot, dry season. The Eisey Patamak Mountain, Ratanakiri is one of the popular Tourist Attractions in Ratanakiri, a small province in northeast Cambodia. The Eisey Patamak Mountain, Ratanakiri is where the famous Wat Rah-Tahn-Ah-Rahm (Reclining Buddha), is located. This is an ancient statue of the Lord Buddha in a laid back posture, to have withstood the ravages of time. The Eisey Patamak Mountain in Ratanakiri is also known as the Phnom Svay. This statue has lain undisturbed down the years.	Katieng Waterfall Ka Tieng waterfall is in the middle of lush forest at the Lbang I commune, Lumpart district, 7 kilometers south-west of Banlung Town. The name of Ka Tieng is originally got from Kreung hill tribe in Ka Kieng village. The waterfall is about 10 meters high, which is flows and falls throughout the year. Visitors will feel release with the huge clear waterfall and a beautiful natural landscape around the area. Around the waterfall, there is forest full of big and small trees projecting the cool shadow suitable for resting, viewing the water falling down and having picnic here. The Katieng Waterfall, Ratanakiri is one of the less visited waterfalls in the area. You can enjoy some wonderful time if you combine your visit to this waterfall with an elephant ride. Elephant rides are available from the elephant village of Phume Kateung, north of the falls. You can also see the Katieng Waterfall, Ratanakiri from flights, if you are lucky. When the plane is landing or taking off, watch out for the falls. Elephant rides to this fall are available for an hour and a half. These can be organized by the lodges you are staying in.	Kachang Waterfall Kachang Waterfall, also spelt Kachanh, is a 12m natural waterfall – typical of Ratanakiri province. Around 5km’s from Banlung town the Kachang Waterfall is surrounded by a mixture of large and small trees. Follow the steps down the waters edge, wander across the wooden bridge and admire the cascading water before taking a dip in the bottom pool. Face away from the waterfall and feast your eyes on rain forest flora. There are plenty of hammocks to chill out in too. Kachang Waterfall is a no-fuss waterfall of Ratanakiri province.	Ou Sen La'or Waterfall Ou'Sean Laor Waterfall is situated 26 km, South of Banlung. This Waterfall has 4 floors and the height of each floor is 4 m. The water flows throughout the year. Around the Waterfall are beautiful natural landscapes and the visitors can go take a bath if they wish. Ou Sean Lair Waterfall is one of the popular waterfalls of this area. It can be counted among the top tourist attractions in Ratanakiri. A large number of travel enthusiasts visit Ratanakiri each year. The province is located in Northeastern Cambodia.
Ou Sen Sranos Waterfall Ou'Sensranoh Waterfall is situated 9 km. south of Banlung. The height of it is 18m. and the water flows and falls all the time. The visitors can go there rest and enjoy the fresh air, or to se the forest and listen to the birds ' cries.Ou?Sensranoh Waterfall, Ratanakiri is one of the popular waterfalls of this colorful province. The province of Ratanakiri is located in Northeastern Cambodia. Banlung is the capital of the province. The word Ratanakiri means a mountain of gems and is derived from the 2 Sanskrit words Ratna and Giri. Ecotourism in Ratanakiri draws numerous visitors each year. Nature enthusiasts throng this place to experience the lush wildlife and remote tribal villages. There are countless tourist attractions in Ratanakiri including mountains, mines, natural landscapes and waterfalls. There are numerous waterfalls present in this area. Ou Sensranoh Waterfall, Ratanakiri is one of the most visited waterfalls of this region.	Cha Ung Waterfall The Cha Ung Waterfall is located in the Kreung hill tribe village of Cha Ung, in the district of Ou Chum. The waterfall is 25m high and surrounded by lush plants and various creepers. The scene is very picturesque. The mists generated by the water cascading off the vegetation create their own rainbows under the bright rays of the sun. Today there are concrete steps in place to ensure that visitors can easily access the bottom of the waterfall from the top of the hill. Vendors selling foods, drinks, snacks and local souvenirs keep the place buzzing, much to the delight of the visitors. Behind the waterfall, a large rocky cave offers visitors a different perspective of the scenery through the cascading water. At the base of the falls are large boulders where visitors can relax on and take in the incredible views.	Vireak Chey National Park Virachey National Park was established in 2004 by MoE (Ministry of Environment). With its 3.325 square kilometers, Virachey National Park is the largest National Park among seven other National Parks in Cambodia. It offers an incredible insight into the variety of both Cambodia's still existing wilderness and wildlife. Visitors can go on multiday guided trekking trips through the Park including outdoor camping at night.	Lumphat Wildlife Sanctuary Lumphat Wildlife Sanctuary is situated 37km. south of Banlung. With a total land area of 250,000 ha. there are special kinds of animals and birds like tigers, elephants, red-headed vultures.Lumphat Wildlife Sanctuary, Ratanakiri is one of the must-see places in the colorful Cambodia. The province of Ratanakiri is located in the northeastern part of the country. The word Ratanakiri is derived from the Sanskrit words Ratna and Giri, which combine to mean a mountain of gems . Countless tourists throng this place every year to experience and enjoy the rich wildlife, ecotourism prospects and remote tribal villages. If you want to tour this province extensively, make it a point to include Lumphat Wildlife Sanctuary, Ratanakiri in your itinerary.