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The Chocolate Hills ( ceb, Mga Bungtod sa Tsokolate, tgl, Mga Tsokolateng Burol) are a geological formation in the
Bohol Bohol (), officially the Province of Bohol ( ceb, Lalawigan sa Bohol; tl, Lalawigan ng Bohol), is an island province of the Philippines located in the Central Visayas region, consisting of the island itself and 75 minor surrounding islands. It ...
province of the
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 ...
.Eye on the Philippines
Global Eye Retrieved December 22, 2006.
There are at least 1,260 hills, but there may be as many as 1,776 hills spread over an area of more than .Chocolate Hills
Seven Natural Wonders. Retrieved December 10, 2011.
They are covered in green grass that turns brown during the dry season, hence the name. The Chocolate Hills are a famous tourist attraction of Bohol. They are featured in the provincial flag and seal to symbolize the abundance of natural attractions in the province. They are in the Philippine Tourism Authority's list of tourist destinations in the Philippines; they have been declared the country's third National Geological Monument and proposed for inclusion in the
UNESCO The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations (UN) aimed at promoting world peace and security through international cooperation in education, arts, sciences and culture. It ...
World Heritage A World Heritage Site is a landmark or area with legal protection by an international convention administered by the United Nations Educational, Scientific and Cultural Organization (UNESCO). World Heritage Sites are designated by UNESCO for h ...
List.Chocolate Hills Natural Monument
UNESCO World Heritage Centre Retrieved November 14, 2006.


Description

The Chocolate Hills form a rolling terrain of haycock-shaped hills—mounds of a generally conical and almost symmetrical shape. Estimated to be from 1,268 to about 1,776 individual mounds, these cone-shaped or dome-shaped hills are actually made of grass-covered
limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when ...
. The domes vary in size from high with the largest being in height. One of Bohol's best known tourist attractions, these unique mound-shaped hills are scattered by the hundreds throughout the towns of Carmen, Batuan and Sagbayan.


Vegetation

During the
dry season The dry season is a yearly period of low rainfall, especially in the tropics. The weather in the tropics is dominated by the tropical rain belt, which moves from the northern to the southern tropics and back over the course of the year. The te ...
, the grass-covered hills dry up and turn chocolate brown. The vegetation is dominated by grass species such as ''
Imperata cylindrica ''Imperata cylindrica'' (commonly known as cogongrass or kunai grass ) is a species of perennial rhizomatous grass native to tropical and subtropical Asia, Micronesia, Melanesia, Australia, Africa, and southern Europe. It has also been introduce ...
'' and ''
Saccharum ''Saccharum'' is a genus of tall perennial plants of the broomsedge tribe within the grass family. The genus is widespread across tropical, subtropical, and warm temperate regions in Africa, Eurasia, Australia, the Americas, and assorted ocean ...
spontaneum''. Several ''
Compositae The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...
'' and ferns also grow on them. In between the hills, the flat lands are cultivated with rice and other cash crops. However, the natural vegetation on the Chocolate Hills is now
threatened Threatened species are any species (including animals, plants and fungi) which are vulnerable to endangerment in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of ''critical depensat ...
by
quarry A quarry is a type of open-pit mining, open-pit mine in which dimension stone, rock (geology), rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground. The operation of quarries is regulated in some juri ...
ing activities.Bohol Island Herbarium
www.pnh.com.ph. Retrieved November 14, 2006.


Origin

The Chocolate Hills are conical
karst Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathering-resistant ...
hills. These hills consist of Late
Pliocene The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58Pleistocene The Pleistocene ( , often referred to as the ''Ice age'') is the geological epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in ...
, thin to medium bedded, sandy to rubbly marine
limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when ...
. These limestones contain the abundant fossils of shallow marine
foraminifera Foraminifera (; Latin for "hole bearers"; informally called "forams") are single-celled organisms, members of a phylum or class of amoeboid protists characterized by streaming granular ectoplasm for catching food and other uses; and commonly ...
, coral,
mollusks Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estim ...
, and
algae Algae (; singular alga ) is an informal term for a large and diverse group of photosynthesis, photosynthetic eukaryotic organisms. It is a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from u ...
.Hillmer, G., 1987, ''Zur geologie und morphologie der straandterrassen von Cebu und Bohol Philippinen.'' Berliner geographische Studien. v. 25, p. 363–376.Travaglia, C., R. Peebles, E. Bate, and A. Ferrer, 1987, ''Reconnaissance groundwater appraisal of Bohol Island, Philippines, by satellite data analysis.'' RSC Series no. 38. Food and Agriculture Organization of the United Nations, Rome, Italy. These conical hills are geomorphological features called cockpit karst, which were created by a combination of the dissolution of limestone by rainfall, surface water, and groundwater, and their subaerial
erosion Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location where it is deposited. Erosion is distin ...
by
streams A stream is a continuous body of surface water flowing within the bed and banks of a channel. Depending on its location or certain characteristics, a stream may be referred to by a variety of local or regional names. Long large streams ar ...
after they had been
uplifted ''Uplifted'' is the second studio album by Nigerian singer Flavour N'abania. It was released on July 20, 2010, by Obaino Music and 2nite Entertainment. The album features guest appearances from Jay Dey, Oloye, Stormrex, Waga Gee, Asemstone, M-Jay, ...
above sea level and fractured by
tectonic Tectonics (; ) are the processes that control the structure and properties of the Earth's crust and its evolution through time. These include the processes of mountain building, the growth and behavior of the strong, old cores of continents k ...
processes. These hills are separated by well developed flat plains and contain numerous caves and springs. The Chocolate Hills are considered to be a remarkable example of conical karst topography.Restificar, S. D. F., M. J. Day, and P. B. Urlich, 2006
''Protection of Karst in the Philippines (Varstvo Krasa na Filipinih).''
, 788 KB PDF version. Acta Carsologica. v. 35, no. 2, p. 121-130.
Urlich, P. B., M. J. Day, and F. Lynagh, 2001
''Policy and practice in karst landscape protection: Bohol, the Philippines.''
The Geographical Journal. v. 167, no. 4, pp. 305-323.
Leman, S. L., A, Reedman, and C. S. Pei, 2008
Geoheritage of East and Southeast Asia.
, 5.7 MB PDF version. The CCOP-Institute for Environment and Development, Universiti Kebangsaan, Bangi Selangor, Malaysia.
The origin for the conical karst of the Chocolate Hills is described in popular terms on the bronze plaque at the viewing deck in Carmen, Bohol. This plaque states that they are eroded formations of a type of marine limestone that sits on top of hardened clay.Chocolate Hills: Philippines Vacation
www.philippinesvacation.org Retrieved November 15, 2006.
The plaque reads:
The unique land form known as the Chocolate Hills of Bohol was formed ages ago by the uplift of coral deposits and the action of rain water and erosion.
The plaque also makes reference to a fanciful explanation of the origin of the Chocolate Hills that is unsupported by any published scientific research, e.g. neither Hillmer nor Travaglia and others, when it states: Self-published, popular web pages present a variety of fanciful and less credible explanations about how these hills formed. They include sub-oceanic
volcanism Volcanism, vulcanism or volcanicity is the phenomenon of eruption of molten rock (magma) onto the surface of the Earth or a solid-surface planet or moon, where lava, pyroclastics, and volcanic gases erupt through a break in the surface called a ...
; limestone covered blocks created by the destruction of an active volcano in a cataclysmic eruption; and tidal movements. The lack of any exposed or associated volcanic rocks in the Chocolate Hills refutes the popular theories involving volcanic eruptions. The theories involving either a sudden, massive geologic shift, coral reefs being erupted from the sea, or tidal movements lack any corroborating evidence and support among geologists.


Legend

The Chocolate Hills inspired many legends. One tells a story of two giants fighting by throwing stones and sand on each other. After the fight, the hills remained. Another legend speaks about a young, strong giant who fell in love with a human girl. When she died, he cried and his tears then petrified and formed the Chocolate Hills.


Tourism

Two of the hills have been developed into tourist resorts. The main viewing point of the Chocolate Hills is the government-owned Chocolate Hills Complex in Carmen, about from the regional capital
Tagbilaran Tagbilaran, officially the City of Tagbilaran ( ceb, Dakbayan sa Tagbilaran), is a 3rd class component city and capital of the province of Bohol, Philippines. According to the 2020 census, it has a population of 104,976 people. Encompassing a la ...
. The other main point to view the Chocolate Hills is at Sagbayan Peak, in Sagbayan, away from the Chocolate Hills complex in neighboring Carmen.


Protection


Legislation

The National Committee on Geological Sciences declared the Chocolate Hills of Bohol a National Geological Monument on June 18, 1988, in recognition of its special characteristics, scientific importance, uniqueness, and high scenic value. As such, this included the Chocolate Hills among the country's protected areas. More protection was provided by ''Proclamation No. 1037'' signed by President
Fidel V. Ramos Fidel Valdez Ramos (, ; March 18, 1928 – July 31, 2022), popularly known as FVR and Eddie Ramos, was a Filipino general and politician who served as the 12th president of the Philippines from 1992 to 1998. He was the only career military ...
on July 1, 1997, which established the Chocolate Hills and the areas within, around, and surrounding them located in the municipalities of Carmen, Batuan and Sagbayan, Bilar, Valencia and Sierra Bullones, Province of Bohol as a natural monument to protect and maintain its natural beauty and to provide restraining mechanisms for inappropriate exploitation. As such, they are covered under the National Integrated Protected Areas System with 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 ...
(DENR) as the lead implementing agency for its protection.
Land-use conflict A land-use conflict occurs when there are conflicting views on land-use policies, such as when an increasing population creates competitive demands for the use of the land, causing a negative impact on other land uses nearby. Common types Urban ...
prompted President
Gloria Macapagal-Arroyo Maria Gloria Macaraeg Macapagal Arroyo (, born April 5, 1947), often referred to by her initials GMA, is a Filipino academic and politician serving as one of the House Deputy Speakers since 2022, and previously from 2016 to 2017. She previously ...
to sign an amendment to ''Proclamation 468'' dated September 26, 1994, declaring the land around or in between Chocolate Hills as no longer part of the national monument during the Bohol Sandugo Celebration on July 17, 2002. This amendment allowed the tracts of land surrounding and within the famous tourist spot to be developed by the provincial government and other entities that have control over the area. Further, the amended proclamation ensures that the areas that have to be preserved are preserved, while those that could be developed would be excluded from the national monument area and classified as alienable and disposable by the government. The president initially decided on the issue during the joint meeting of the Regional Development Council-Regional Peace and Order Council of Region VII which was conducted at the Bohol Tropics Resort. Bills have been filed aiming to strengthen protection of the hills. On July 6, 2004, the
Philippine House of Representatives The House of Representatives of the Philippines ( fil, Kapulungan ng mga Kinatawan ng Pilipinas, italic=unset, ''Kamara'' or ''Kamara de Representantes'' from the Spanish word ''cámara'', meaning "chamber") is the lower house of Congress, the ...
introduced ''House Bill No. 01147'' entitled "an act declaring the Chocolate Hills as national patrimony and geological monuments, penalizing their plunder, destruction or defacement, and for other purposes." The house bill was authored by Congressman Eladio "Boy" Jala and co-authored by Congressman Roilo Z. Golez and Edgar M. Chatto. Though this has not been passed into law. On May 16, 2006, the DENR submitted the Chocolate Hills to the
UNESCO The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations (UN) aimed at promoting world peace and security through international cooperation in education, arts, sciences and culture. It ...
World Heritage A World Heritage Site is a landmark or area with legal protection by an international convention administered by the United Nations Educational, Scientific and Cultural Organization (UNESCO). World Heritage Sites are designated by UNESCO for h ...
for inclusion in the list of Natural Monuments because of its outstanding universal value:


Issues

Balancing their protection, resource utilization and tourism are the challenges faced by the Chocolate Hills. Before they were designated national geological monuments, some of the hills (about ) were classified as alienable and disposable or private lands such that they were titled to some locals. The declaration consequently caused some social unrest, resulting in almost simultaneous civil uprising, led by the long-established
New People's Army The New People's Army ( fil, Bagong Hukbong Bayan), abbreviated NPA or BHB, is the armed wing of the Communist Party of the Philippines (CPP), based primarily in the Philippine countryside. It acts as the CPP's principal organization, aim ...
(generally described as Maoist guerrillas) establishing a new
front Front may refer to: Arts, entertainment, and media Films * ''The Front'' (1943 film), a 1943 Soviet drama film * ''The Front'', 1976 film Music *The Front (band), an American rock band signed to Columbia Records and active in the 1980s and ea ...
, known as the Chocolate Hills Command. To some farmers, the proclamation is a government scheme which suppresses their right to own lands. As such, conflicts between the New People's Army group and government military forces escalated, culminating in two major engagements. Being alienable and disposable lands, the Chocolate Hills are seen as quarrying assets and source of income for small-scale miners, as well as quarry materials for the province's construction projects. The challenge is how the national and local officials can harmonize the current needs of small-scale miners, the construction sector and the tourism sector with the preservation of the Chocolate Hills.CV gh Context of PA 21
www.neda7.net.ph. Retrieved November 17, 2006.
Even with their protected status, mining permits continue to be granted by DENR and local government units. Hence, mining and quarrying are still taking place. Because of this, the provincial government of Bohol has requested jurisdiction over the Chocolate Hills from the DENR. Meanwhile, the provincial government has suggested that the legislation defining the Natural Monument should be changed, which will require that the proclamation be redrafted and ratified by both the Philippine House and Senate. This is a cumbersome and costly process, on which no progress has been made to date. Future development and investment challenges within the Chocolate Hills area include: obtaining the national government's sanction for the project; persuading landowners to sell; convincing the Protected Areas Management Board, which has jurisdiction over the hills, not to use its veto power over any investment requiring physical facilities.
www.newsflash.org. Retrieved November 14, 2006.


See also

*
List of protected areas of the Philippines This is a list of protected areas of the Philippines administered by the Department of Environment and Natural Resources (DENR)'s Biodiversity Management Bureau under the National Integrated Protected Areas System (NIPAS) Act of 1992. As of 20 ...
* Breast-shaped hill *
Kegelkarst Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathering-resistant ...


References


External links


UNESCO World Heritage: Chocolate Hills Natural Monument


Articles


Chocolate Hills
Chocolate hills travel information
The Chocolate Hills
* ttps://web.archive.org/web/20060328083131/http://www.congress.gov.ph/bis/print_history.php?save=1&journal=&switch=0&bill_no=HB01147 House Bill 001147 {{World Heritage Sites in the Philippines Landforms of Bohol Hills of the Philippines National geological monuments of the Philippines Visayan landmarks Natural monuments of the Philippines Tourist attractions in Bohol World Heritage Tentative List for the Philippines