Stratovolcano at the western end of Java
Mount Pulosari is a stratovolcano in Pandeglang Regency, Banten, in West Java Indonesia. There are active solfataras on its deep caldera wall. 
Geology.
Pulosari is included on the list of 116 Indonesian Holocene age volcanoes. It has been identified as a volcano in a fumarolic state with no known eruptions. Basalt, andesite, and pyroxene have all been identified in the petrology of the mountain.
An 1875 account describes the crater as consisting of "tan lava and traohite chunks", around 800 steps in diameter and shallow. It also states that the crater contains boiling mud and that the rim is permeated by sulfurous gas made more prominent should the ground be punctured.
History.
During the 10th century, a Hindu temple was built on the highland of the mountain, under the Sunda Kingdom. Five statues that share a single base depict Shiva Mahadewa, Durga, Batara Guru, Ganesha and Brahma; these are known as "Caringin" statues.
800 priests are said to have lived on the mountain under the leadership of Prabu Pucuk Umun during the era of Sunan Gunungjati and Maulana Hasanuddin of Banten in the 16th century. Hasanuddin lived there for almost a decade, and many converted to Islam. Those who did not left for the southern mountainous areas. Local history states that Hasanuddin required the converted priests to remain on the mountain, believing that a lack of pious guardians would be detrimental to the welfare of life on Java.
The stratovolcano has also been known by the name Poelasari and Pulasari. In "The Book of Ancient Kings", Mount Pulosari is referred to as Mount Batuwara.
Cultural structures.
Cidaresi Bergores stone.
At 06° 21' 39.5" S, 106° 00' 17.6" E stands the Cidaresi Bergores stone, a long by wide monolith with triangular shapes scored into the surface. Locally, the stone is called 'batu tumbung' or 'batu tum' because the triangles are representative of female genitals. The stone is composed of andesite and is located in the midst of rice paddies. It is considered a symbol of fertility.
Citaman pools.
Sukasari Village stands at the base of Mount Pulosari and houses a complex of nine purification pools are located.
Cipanggitikan.
The pool at Cipanggitikan has been covered by concrete, leaving a rectangular shape measuring by . It has a depth of , and the water is used in the supply for Pandeglang and is owned in part by the Regional Drinking Water Company (PDAM) ] in Pandeglang.
Cikajayaan.
Cikajayaan is west of Cipanggitikan and means "water of glory". Locals believe bathing in the pool will bring success. The pool is square, bordered by small rocks, and had an area comprising by , with a depth of . It is surrounded by "Hibiscus rosa-sinensis".
Cikaapeusan.
Approximately from Cikajayaan stands Cikaapeusan, known as the "water of bad luck". People bathe in the pool to get rid of their bad luck. It measures by with a depth of , and is covered by concrete like Cipanggitikan, save for a small opening on one side.
Cipangantenan.
Cipangantenan is approximately west of Cikaapeusan. It is in the shape of an "L", measuring by with a depth of . This pool has a spring flowing directly into it that also flows into the larger Citaman Pool, and is surrounded by andesite rocks. The name means "wedding water" as it is believed that those who wish to find their "soul mate" must bathe in the water.
Cikapaliasan.
Approximately west of Cikapangantenan, the waters of this pool are believed to protect from danger. The pool is shaped like a trapezoid and covers an area of square with a depth of . The water from this pool flows directly into Citaman Pool.
Cikaputrian.
The most popular of the nine pool, Cikaputrian measures by with a depth of . It lies approximately to the northeast of Cikapaliasan.
Cikahuripan.
Located to the left of the entrance to the Citaman site, the pool is bordered by andesite rocks and covers an area of square, with a depth of .
Cikembangan.
 southwest of Cikahuripan, Cikembangan – meaning "flower water" – is directly adjacent to Citaman Pool. It measures by and has a depth of . It is covered with green moss.
Citaman.
The largest of the pools, Citaman covers an area of square and a depth of up to . The water flows directly into the Cigetir River. It has a divider, allowing for division between genders in using the pool. It is above sea level, located at coordinates 6° 25' 24.5" S and 105° 55' 09.8" E.
Goong complex.
The Goong complex is approximately from the Pandeglang Regency government center. The word "Goong" is Sudanese for "gong" for the artifacts found among the megaliths. Several research studies were conducted to determine the cultural heritage of the site, concluding that the area is prehistoric and the stones are megaliths. It is located at coordinates 6° 20' 17.2" S and 105° 55' 18.9" E and is a terraced site, low on the west and high on the east. The resulting stepped contour is called Kaduguling Hill.
One of the megalith areas includes 12 stones in a cupola, one menhir surrounded by 10 cylindrical stones with flat tops and one gong shaped artifact. The formation is often referred to as a "meeting bracelet". There are five such constructions within the complex.
Ranjang stone.
The flat-topped andesite stone located at Batu Ranjang ] is known as a dolmen. Though these are traditionally grave sites, this particular location is thought to have been used for the worship of ancestral spirits.
Sirit Gopar site.
On the slopes of Mount Pulosari at 6° 19' 20.4" S and 105° 58' 52" E stand a number of menhirs in the shape of a phallus. The name of the site translates to "male genitals". It is considered a site for fertility rites from prehistoric Indonesian peoples.
Tongtrong stone.
The Tongtrong stone is located in the yard of a prayer room, and because it has been removed from its historical context, its exact historical cultural function is unknown. There is debate as to whether it was involved in burial or, because of its shape resembling female genitals, in fertility ceremonies.
Flora.
"Acalypha caturus" ] was identified growing on the mountain at .
"Actinodaphne procera" ] has been found growing between and .
A variant of "Actephila" ("Actephila javanica") is thought to grow at approximately above sea level. It was observed flowering in December circa 1910.
"Alyxia" plants have also been recorded in the area, with local wisdom mixing the wilted leaves of the gagan plant ("centella asiatica") to create a vermicide for children. "A. reinwardtii" ] is locally called pulasari and is sometimes sold as white cinnamon. Other mixtures containing "A. reinwardtii" are prepared as treatments for a varied number of medical conditions, from promoting lactation, to use as a diuretic, to a stage in treating smallpox.
"Antidesma tetandrum" ] was identified growing at , blooming in June.
"Beilschmiedia madang" ] has been identified growing on the mountain at .
"Bischofia javanica" was reported as having been collected on the mountainside circa 1910.
"Breynia microphylla" ] has been identified as growing on the mountainside at approximately .
"Bridelia gauca" ] has also been identified at approximately . "B. minutiflora" was identified at around . "B. tomentosa" ] is used in making machete handles and is found growing on the mountainside around , blooming in June.
"Castanea argentea", "C. javanica", and "C. tungurrut" have all been found growing at over .
"Celtis tetrandra" was located growing on the mountain at around .
"Cheilosa montana" was identified on the mountainside at and bloomed in November.
"Claoxylon indicum" was identified growing at approximately , blooming in June.
"Cryptocarya densiflora" ] has been identified as growing between and throughout Java, and was found on both Mount Salak and Mount Pulosari. "C. tomentosa" ] was only found to grow in West Java between and , and was identified on Mt. Gëde, Mt. Karang, and Mt. Pulosari.
"Daphniphyllum glaucescens" ] was recorded as growing around circa 1910. This is taller than the recorded height of this volcano in 2024.
Some "Dissochaeta" plants are known to grow from Mount Pulosari to Mount Slamet in Banyumas Regency. Specific species include "D. inappendiculata" and "D. gracilis" ].
"Glochidion arboreseens" ] is the recorded name of a plant found growing on the mountain between and above sea level. "G. rubrum" ] was found growing nearly at the top of the volcano, at , and was seen to bloom in June. "G. borneense" ] also bloomed in June and was found growing at . "G. kollmannianum" was found at .
"Homalanthus populneus", locally known as kareumbi ], was located growing between and on the mountainside and recorded blooming in June.
"Laportea stimulans" was identified on the mountainside between and and was seen blooming in June.
"Litsea accedentoides" ] was found growing only on Mount Pulosari at around . "L. acerina" and "L. polita" were found only on the slopes of Mt Pulosari and Mt Karang. "L. chrysocoma" was found growing above on both Mt Karang and Mt Pulosari. "L. ferruginea" ] was found only growing on Mt Pulosari, Mt Salak, and near Takòka. "L. resinosa" ] was found on the mountainside between and .
"Macaranga rhizinoides", locally called mara tapen ], grows on the mountainside between and above sea level.. "M. tanarius", locally called mara ], was found blooming in July at . "M. triloba", locally called mahang damar ], was found at approximately , and is listed as being common among the volcanic mountains of Indonesia.
"Mallotus cochinchinensis" was discovered blooming in June at on the mountain. "M. glaberrimus" and "M. blumeanus" ] were both found at and bloomed in November.
"Ostodes paniculata" ] was located at , blooming in June.
"Phoebe macrophylla" has been found blooming in June at around .
"Villebrunea rubescens" was identified as growing on the mountain at , with the variant "V. rubescens sylvatica" growing at .
Myths.
Mount Pulosari has a small role in the Hindu creation myth associated with Mount Karang: in the story, Hanomat, king of the monkeys, carried two large bags of sand to create two islands in the Sunda Strait. When he saw that three islands already existed there, he tore the bags to pieces, creating two growing piles of sand that formed both Karang and Pulosari.
The Banaspati Ghost ] is a legend of a ghost that roams the mountain and leads climbers astray.
Another local legend tells of buffalo-sized wild boars who roam the slopes of the mountain at night and destroy crops.
References.
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