Coordinates: 43°29′01″N023°17′22″E / 43.48361°N 23.28944°E
A geographic coordinate system is a coordinate system that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position and two or three of the numbers represent a horizontal position; alternatively, a geographic position may be expressed in a combined three-dimensional Cartesian vector. A common choice of coordinates is latitude, longitude and elevation. To specify a location on a plane requires a map projection.
Erden [1] (Bulgarian : Ерден) is a village (село) in northwestern Bulgaria, located in the Boychinovtsi municipality (община Бойчиновци) of the Montana Province (Област Монтана).
Bulgarian, is an Indo-European language and a member of the Southern branch of the Slavic language family.
Boychinovtsi is a town (град) in northwestern Bulgaria, the administrative centre of Boychinovtsi Municipality, Montana Province. It is near the city of Montana. As of December 2009, the town has a population of 1,648 inhabitants.
Montana Province is a province in northwestern Bulgaria, bordering Serbia in the southwest and Romania in the north. It spreads its area between the Danube river and Balkan mountain. As of February 2011, the province has a population of 148,098 inhabitants, on territory of 3,635.5 km². It was named after its administrative centre the city of Montana.
