Grundkallen
Grundkallen Lighthouse | |
| Location | 20 km (12 mi) northeast of Öregrund Sweden |
|---|---|
| Coordinates | 60°29′43″N 18°50′59″E / 60.49528°N 18.84972°E |
| Tower | |
| Constructed | 1961 |
| Foundation | concrete |
| Construction | concrete tower |
| Automated | 1 January 1980 |
| Height | 34 m (111.5 ft) |
| Shape | cylindrical tower with double balcony and lantern on a 2-storey crew quarters, helipad on the top |
| Markings | red tower, black basement |
| Power source | diesel generator, solar cell panel |
| Operator | Swedish Maritime Administration (Sjöfartsverket) |
| Racon | G |
| Light | |
| Focal height | 32 m (105.0 ft) |
| Lens | sixth order Fresnel lens (1992–) |
| Range | 9.2 nmi (17.0 km; 10.6 mi) (white), 6.6 nmi (12.2 km; 7.6 mi) (red), 5.6 nmi (10.4 km; 6.4 mi) (green) |
| Characteristic | LFl (3) WRG 20s. |
| Sweden no. | SV-2187 |
![](https://en.wikipedia.org/wiki/Https://quickstatements.toolforge.org/#/v1=Q5612092|P31|Q39715||Q5612092|P625|@60.49528/18.84972|S143|Q328||Q5612092|P571|+1961-00-00T00:00:00Z/9|S143|Q328||Q5612092|P2048|34_mU11573|S143|Q328||Q5612092|P2923|32_mU11573|S143|Q328||Q5612092|P1030|"LFl_(3)_WRG_20s."|S143|Q328||Q5612092|P18|"Grundkallen.jpg"|S143|Q328|P2096|en:"Grundkallen_Lighthouse"){kind=link}
Grundkallen is a Swedish lighthouse on a shallow of the same name in the southern part of the Gulf of Bothnia, some 20 kilometres (12 miles) northeast of Öregrund. The current 34-metre (111.5 ft) lighthouse was built in 1961 to replace a lightship in the same location. It is a round concrete tower with a helipad on top and a round two-storey crew quarters in the bottom, both painted red, mounted on a round caisson which is painted black. The lighthouse, owned by the Swedish Maritime Administration, is automated and unmanned.