Question: Rambynas, a hill known as sacred among locals and popular with Prussian Lituanians, sits on the bank of which river?

Context paragraphs:
Tonteg: Tonteg is a village around three and a half miles (6 km) from Pontypridd, south Wales.  It is 9 mi north west of Cardiff and four miles (6.5 km) north east of Llantrisant.  The village is within the community of Llantwit Fardre.  Tonteg is to the north west of the Garth Mountain, on the west side of the River Taff valley, at the top of a hill known locally as "Powerstation Hill".  The hill gets its name from the Upper Boat power station which was situated at the bottom of the hill until it was demolished in 1972.  Tonteg is next to Church Village and the boundaries between the two villages are blurred.  A significant part of the Treforest Industrial Estate falls within the Willowford area of Tonteg.

Rambynas: Rambynas is a hill on the right bank of the Neman River in Rambynas Regional Park, Pagėgiai Municipality, western Lithuania.  The current hill, about 46 m above sea level and about 40 m above the Neman, is a remnant of the larger hill that was destroyed by erosion.  The hill was known as sacred among locals and played a role in the ceremonies of pagan Lithuanians.  It is featured in many local legends and is protected by the state as a mythological object.  A large stone at the top of the hill, known as the altar stone, was destroyed by a miller in 1811.  Rambynas became popular with Prussian Lithuanians at the end of the 19th century who organized various events, most notably celebrations of the Saint Jonas' Festivals or Rasos (summer solstice), on the hill.  They rebuilt the altar in 1928.  The hill is popular with Lithuanian neo-pagans and hosts the annual celebrations of the summer solstice on 23 June.

Prussian Lithuanians: The Prussian Lithuanians or Lietuvininkai (singular: "Lietuvininkas", plural: "Lietuvininkai") are a Western Lithuanian ethnic group, originally Lithuanian language speakers who inhabited a territory in East Prussia called Prussian Lithuania or Lithuania Minor, (Lithuanian: "Prūsų Lietuva", "Mažoji Lietuva" , German: "Preußisch-Litauen", "Kleinlitauen" ) in contrast to the Grand Duchy of Lithuania and later the Republic of Lithuania (Lithuania Major or Proper).  Prussian Lithuanians contributed greatly to the development of written Lithuanian, which for a long time was considerably more widespread and in more literary use in their land than in Lithuania Proper.

Sacro Monte di Orta: The Sacro Monte di Orta (literally: "Sacred Mountain of Orta") is a Roman Catholic devotional complex in the comune of Orta San Giulio (Piedmont, northern Italy) on the summit of a hill known as San Nicolao, which faces the western shore of Lake Orta.  It is one of the Sacri Monti of Piedmont and Lombardy, included in UNESCO World Heritage list.

Stalag IX-B: Stalag IX-B (also known as Bad Orb-Wegscheide) was a German World War II prisoner-of-war camp located south-east of the town of Bad Orb in Hesse, Germany on the hill known as "Wegscheideküppel".  The camp originally was part of a military training area set up before World War I by the Prussian Army.

Swayambhu (architecture): Swayambhu (Devanagari: स्वयम्भू स्तूप; Newari: स्वयंभू ; sometimes Swoyambhu) is an ancient religious architecture atop a hill in the Kathmandu Valley, west of Kathmandu city.  The Tibetan name for the site means 'Sublime Trees' (Wylie: "Phags.pa Shing.kun"), for the many varieties of trees found on the hill.  However, "Shing.kun" may be a corruption of the local Nepal Bhasa name for the complex, Singgu, meaning 'self-sprung'.  For the Buddhist Newars, in whose mythological history and origin myth as well as day-to-day religious practice Swayambhu occupies a central position, it is probably the most sacred among Buddhist pilgrimage sites.  For Tibetans and followers of Tibetan Buddhism, it is second only to Boudha.

Hamilton Park, Staten Island: Hamilton Park in Staten Island, one of the five boroughs of New York City, is a neighborhood filled with homes from the 18th and 19th century, several of which are historic landmarks.  Some of the street names include Harvard Avenue, Franklin Avenue, Park Place, Highview Avenue, and St. Mark's Place.  Hamilton Park is an old tight-knit community nestled in a sea of developments and low income housing projects.  It sits on top of a hill known as "Brighton Heights" and ranks with Todt Hill as one of the highest points on the eastern seaboard below Maine.

Bhoothalingaswamy Temple, Bhoothappandi: Bhoothalingaswamy Temple is at Boothapandi.  Boothapandi is the headquarters of Thovalai taluk in Kanyakumari District, India.  It is north east of Nagercoil.  The village sits on the western bank of the river Pazhaiyar, at the foot of the hill known as Thadakaimalai which is considered to be the abode of Thadakai in the Ramayana.  It forms a place of legendary importance.

Munsa: Munsa is an archaeological site in Uganda, located in the south-eastern part of Bunyoro ( ), and is commonly recognized by a rocky hill known by the locals as "Bikegete", which is enclosed within an earthworks system of ancient ditches.  The site is approximately 5 km north-west of Kakumiro township in Bugangaizi County, Kakumiro District.  "Munsa" is a Lunyoro name that means "in the trenches".  The architects of the earthworks are unknown, although it has been speculated that the site can be linked to the Bachwezi.  There is no evidence for this, however, and it seems likely that association of Munsa with the Bachwezi (or Cwezi) is a recent development.

Toft, Warwickshire: Toft is a hamlet in the county of Warwickshire, England, just south of Dunchurch village.  To the west across Draycote Water (a modern reservoir) lies Thurlaston village.  The hamlet is known to have existed in the early 17th century .  It sits on a hill known as Toft Hill and can be found on UK Survey Maps.  Toft is home to a herd of over one hundred alpacas at Toft Alpacas, which is based at Toft Manor, Toft Lane and is the base for TOFT uk, the home the TOFT luxury yarn brand, offering easy-to-make knitting and crochet projects that include patterns and kits from Kerry Lord’s popular Edward’s Menagerie books.

Supporting paragraphs: Rambynas Prussian Lithuanians
Answer: Neman River