The region has extensive coastlines, valleys and mountain ranges. Known for its river system, the region is the drainage basin of Mindanao, particularly at the Cotabato Basin, a large depression surrounded by mountain ranges on three sides.[4][5] Within the basin runs the Rio Grande de Mindanao, the longest river in Mindanao and the second longest in the Philippines. The river empties into Illana Bay of the larger Moro Gulf at the west of Cotabato City.
At the south of the basin lie the Tiruray Highlands, a moderately high mountain range blocking the basin from the southern coastline.[4] Southeast of the mountains lie the Sarangani Bay.
The oldest civilization in the region is located in Maitum, Sarangani, where the Maitum Anthropomorphic Pottery were found. The jars have been declared as National Cultural Treasures, and are subject to the high protections ensured by Philippine and international laws.
From the middle of the 14th century to 1905, the Sultanate of Buayan dominated the Soccsksargen region, influencing the local datus in the area as well as having General Santos City under its direct control as a port.
Central Mindanao
The region used to be named Central Mindanao. Prior to the creation of the Autonomous Region in Muslim Mindanao (ARMM), it comprised the following provinces:
With the creation of ARMM, Lanao del Sur, Maguindanao (excluding Cotabato City), and Sultan Kudarat were removed from the region, leaving Lanao del Norte and Cotabato, and Iligan, Marawi and Cotabato City as constituent provinces and cities.[12] Lanao del Norte and Iligan were later transferred to Northern Mindanao, while Marawi became part of the ARMM.
On December 18, 1998, Sultan Kudarat was transferred back to Central Mindanao through Republic Act No. 8744.[13]
By virtue of Executive Order No. 304 signed by then President Gloria Macapagal Arroyo, Koronadal was named as the regional political and socio-economic center of Soccsksargen on March 30, 2004. Regional departments, bureaus and offices were ordered to move from Cotabato City, the former regional center of the region.
Special Cotabato barangays and Cotabato City exit
Traditionally resisting efforts for inclusion to the Autonomous Region in Muslim Mindanao despite serving as the government center of the ARMM, the January 21, 2019 Bangsamoro Autonomous Region creation plebiscite resulted in the surprise ratification of the Bangsamoro Organic Law in Cotabato City. This means the city may now formally serve as the capital of the region and the offices of the former ARMM will be retained for use by the Bangsamoro Regional Government and now formally no longer constitutes part of the Soccsksargen Region.
The artistic cultural heritage of the native Maguindanao people, among other regional groups—both Muslims and Catholics—revolves around kulintang music, a specific type of gong music. Unique to the Soccsksargen, elements of kulintang may be loosely compared to Indonesia’s gamelan music, and other related traditional performance arts.
^ ab"Executive Order No. 36; Providing for the Reorganization of the Administrative Regions in Mindanao and for Other Purposes". Official Gazette of the Republic of the Philippines. Malacañang, Manila, Philippines. September 19, 2001. Retrieved March 29, 2016. SECTION 4. Region XII is hereby reorganized to be known as SOCCSKSARGEN and shall be composed of the following provinces and cities: a. Provinces i. North Cotabato ii. Sarangani iii. South Cotabato iv. Sultan Kudarat b. Cities i. Cotabato City ii. General Santos City iii. Kidapawan City iv. Koronadal City v. Tacurong City
^"Southern Mindanao Is Now All Davao Region". RDC XI Bulletin. No. Oct-Dec 2001, Volume 7. National Statistical Coordination Board. January 29, 2002. Archived from the original on January 2, 2016. Retrieved March 29, 2016. Southern Mindanao or Region XI is now known as Davao Region and comprises four provinces (Compostela Valley, Davao del Norte, Davao del Sur and Davao Oriental) and five cities (Davao, Digos, Panabo, Tagum and the Island Garden City of Samal. Said provinces and cities are situated along the Davao Gulf area. South Cotabato, Sarangani, General Santos City (SOCSARGEN) and Koronadal City, which were part of the old Region XI) have been transferred to Region XII.