The Andanan River ( tl, Ilog Andanan; ceb, Suba sa Andanan) is a stream located in

Sibagat, Agusan del Sur Sibagat, officially the Municipality of Sibagat ( ceb, Lungsod sa Sibagat; tgl, Bayan ng Sibagat), is a 1st class municipality in the province of Agusan del Sur, Philippines. According to the 2020 census, it has a population of 33,957 people. L ...

and

Bayugan Bayugan, officially the City of Bayugan ( ceb, Dakbayan sa Bayugan; fil, Lungsod ng Bayugan), is a 5th class component city in the province of Agusan del Sur, Philippines. According to the 2020 census, it has a population of 109,499 people.. G ...

Caraga Region Caraga, officially the Caraga Administrative Region (or simply known as Caraga Region) and designated as Region XIII, is an administrative region in the Philippines occupying the northeastern section of Mindanao. The region was created through ...

Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

. It is a

tributary A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage ...

of the larger Wawa River.

Geography

The Andanan River is situated approximately 8.85089, 125.814 in the island of

Mindanao Mindanao ( ) ( Jawi: مينداناو) is the second-largest island in the Philippines, after Luzon, and seventh-most populous island in the world. Located in the southern region of the archipelago, the island is part of an island group of ...

. The Andanan River

headwater The headwaters of a river or stream is the farthest place in that river or stream from its estuary or downstream confluence with another river, as measured along the course of the river. It is also known as a river's source. Definition The ...

s from the Diwata Mountain Range of

. It traverses along Barangay New Tubigon in

Sibagat Sibagat, officially the Municipality of Sibagat ( ceb, Lungsod sa Sibagat; tgl, Bayan ng Sibagat), is a 1st class municipality in the province of Agusan del Sur, Philippines. According to the 2020 census, it has a population of 33,957 people. L ...

and the riverbank barangays of

namely: San Juan, Berseba, Santo Niño, Calaitan, Santa Irene and Noli where its

mouth In animal anatomy, the mouth, also known as the oral cavity, or in Latin cavum oris, is the opening through which many animals take in food and issue vocal sounds. It is also the cavity lying at the upper end of the alimentary canal, bounded on ...

located in Barangay Maygatasan joins with the larger Wawa River. The Wawa River is one of the larger and longer rivers in the province of

Agusan del Sur Agusan del Sur, officially the Province of Agusan del Sur ( ceb, Habagatang Agusan; Butuanon: ''Probinsya hong Agusan del Sur''; tl, Timog Agusan), is a province in Caraga region, Mindanao, Philippines. Its capital is the municipality of Prosp ...

and a tributary river to the

Agusan River The Agusan River is third longest river in the Philippines, located in the north-eastern part of Mindanao island, draining majority of the Caraga region and some parts of Davao de Oro. It is the country's third largest river (after the Cagayan Riv ...

Crossings

There are two permanent

bridges A bridge is a structure built to Span (engineering), span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, whic ...

that cross the Andanan River: * Andanan Bridge ''(1)'' – Barangay Maygatasan,

along the

Pan-Philippine Highway The Pan-Philippine Highway, also known as the Maharlika Highway ( tl, Daang Maharlika; ceb, Dalang Halangdon), is a network of roads, expressways, bridges, and ferry services that connect the islands of Luzon, Samar, Leyte, and Mindanao in t ...

Butuan Butuan (pronounced ), officially the City of Butuan ( ceb, Dakbayan sa Butuan; Butuanon: ''Dakbayan hong Butuan''; fil, Lungsod ng Butuan), is a 1st class highly urbanized city in the region of Caraga, Philippines. It is the ''de facto'' ca ...

- Davao Road * Andanan Bridge ''(2)'' – Barangay New Tubigon,

along the

Tandag Tandag, officially the City of Tandag ( Tandaganon/ Surigaonon: ''Siyudad nan Tandag''; Cebuano: ''Dakbayan sa Tandag''; fil, Lungsod ng Tandag), is a 5th class component city and capital of the province of Surigao del Sur, Philippines. Accordi ...

Road that serves as road boundary connecting Barangay New Tubigon of

and Barangay San Juan of

Watershed

The Andanan River and its surrounding areas was declared as a nature reserve called the Andanan Watershed Forest Reserve (AWFR) proclaimed by virtue of

Philippine The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

Presidential Proclamation No. 734 dated May 29, 1991 with an area of 15,097 hectares comprises with eight (8) barangays namely; Sta. Irene, Calaitan, Berseba, Sto. Niño, Mt. Carmel, Mt. Ararat, San Juan all of

and Barangay New Tubigon in

. The areas of the Andanan River is being proposed as Andanan Natural Park under the National Integrated Protected Areas System (NIPAS). This protected area has its own biological features of fauna and flora dipterocarp and premium species. Ecotourism sites like caves, waterfalls, lakes and unique rock formations are the mere features for tourist destination. The area covered by the proclamation is under the administrative jurisdiction, supervision and control of the

Department of Environment and Natural Resources The Department of Environment and Natural Resources ( fil, Kagawaran ng Kapaligiran at Likas na Yaman, DENR or KKLY) is the executive department of the Philippine government responsible for governing and supervising the exploration, developmen ...

through its

Forest management Forest management is a branch of forestry concerned with overall administrative, legal, economic, and social aspects, as well as scientific and technical aspects, such as silviculture, protection, and forest regulation. This includes management for ...

Bureau in coordination with other government agencies with objective of maintaining its usefulness as a source of water for domestic, agriculture, power generation and other forestry purposes. the Andanan River Watershed supports potable drinking water and irrigation for

, and other areas of

References

Rivers of the Philippines Landforms of Agusan del Sur {{Asia-river-stub

Geography

Crossings

Watershed

See also

References