Uppland Runic Inscription 181

Brottby is a locality situated in Vallentuna Municipality, Stockholm County, Sweden with 262 inhabitants in 2018.Brottby is located in the northern part of Össeby-Garn parish and borders Stora Karby in the west, Prästgården in the west and Svista in the south. In the north, Brottby borders Sundby and Libby in the old Garns parish. Brottby is surrounded by a beautiful cultural environment and important historical land such as Långhundraleden, ancient remains and a rich bird life.

Karby is a locality situated in Vallentuna Municipality, Stockholm County, Sweden with 865 inhabitants in 2010.

The Österåker Prison (Swedish: Anstalten Österåker, commonly known as Österåkersanstalten) is a prison located in Österåker Municipality, thirty kilometers north of Stockholm, Sweden. It is a Class 2-security prison with a capacity for 146 inmates. The facility also contains a remand prison with the capacity for 80 inmates.

Norrö is a locality situated in Österåker Municipality, Stockholm County, Sweden with 305 inhabitants in 2010. It is situated some 2.5 kilometres (1.6 mi) north of the town of Åkersberga.

Stava is a locality situated in Österåker Municipality, Stockholm County, Sweden with 305 inhabitants in 2010.

Österåker Golf Club (Österåkers Golfklubb) is a golf club situated in Åkersberga 20 km northeast of Stockholm, Sweden. It has hosted the Compaq Open on the Ladies European Tour.

Ekskogen is a locality situated in Vallentuna Municipality, Stockholm County, Sweden with 263 inhabitants in 2020. The narrow gauge railway line Roslagsbanan has a stop in Ekskogen, with roughly one train per hour per direction. Ekskogen is also served by two bus lines, 661 and 666.

Angarn Church (Swedish: Angarns kyrka) is a Lutheran church at Angarn in Vallentuna Municipality, Stockholm County, Sweden. It is located close to Angarnsjöängen nature reserve. The church is associated with the Archdiocese of Uppsala of the Church of Sweden.

Angarn (Swedish pronunciation: [ˈâŋːɡɑːɳ]) is a former ward in Vallentuna Municipality, Uppland (Stockholm). Since 2006, Angarn has been part of Össeby congregation. In Angarn there are about 450 ancient monuments: cairns and stone circles of Bronze Age type, a remarkable rock carving, burial ground from the older and younger Iron Age and 10 rune stones. The rectangular granite Angarn Church was probably built at the end of the 13th century. The name ("Angarnæ", 1333) is a composition of an ("received") and garn ("elongated formation"), here referring to Angarnsjöängen, formerly a bay against Garnviken (formerly Garn).

Österåker Municipality (Swedish: Österåkers kommun, IPA: [ˈœ̂sːtɛrˌoːkɛʂ kʊˈmʉːn]) is a municipality in Stockholm County in east central Sweden. Its seat is located in the town of Åkersberga, with a population of 26,727 (2005). From 1974 to 1982 Österåker was part of Vaxholm Municipality. Its location by the Stockholm archipelago, in the Roslagen area, attracts both people who settles here, often commuting to Stockholm, and visiting tourists. Österåker boasts several golf courses, many possibilities for canoeing, horse riding, fishing and other nature activities. Österåker also has a historical significance, with at least three notable castles from the 17th and 18th centuries, with histories tracing even further back. Sweden's once largest quartz mine, the Härsbacka mine, lays within the municipality.Like many other municipalities making up Metropolitan Stockholm, Österåker has a significant outward-commuting mainly to Stockholm, with some 13,000 commuters.

Åkersberga is a locality and the seat of Österåker Municipality, Stockholm County, Sweden with 28,033 inhabitants in 2010.

Angarnsjöängen (Swedish: Lake Angarn Meadow, also spelt Angarnssjöängen) is a nature reserve circa 3 kilometres (3.0 km; 1.9 mi) northeast of Vallentuna, in Southern Uppland, Sweden. It is a wetland with a varying water level depending on the weather. The water rises dramatically each spring as the snow melts and becomes very low by late summer and autumn, creating a good resting place for wading birds. A wetlands restoration project carried out in 1992 markedly increased both the numbers and the variety of birds visiting the site and nesting there. A total of 250 bird species have been observed there during a year. Among the bird species known to typically nest in the nature reserve are western marsh harrier, northern lapwing, common redshank and western yellow wagtail.The Bronze Age Örstar petroglyphs and Runestone U 211 are both in the immediate vicinity. Angarn Church, dating from the 13th century, also lies close to the nature reserve.