Garanligdere is a village in the Gazakh uezd of the former Yelizavetpol (Ganja) governorate, later in the former Karvansara (Ijevan) district, and currently in the Tavush province. The provincial centre lies 6 km to the north of the town of Karvansara, at a height of 720 m above sea level.

Following the settlement of Armenians in the area, the Azerbaijani population gradually left their lands.

The toponym was coined by combining the word “dere” (a valley) and the word “garanlig” used in the Azerbaijani language to mean “a place without light where nothing is visible”, “darkness”. It is an orotoponym.

By the decree of the Presidium of the Supreme Soviet of the Armenian SSR dated 3 January 1935, the village was renamed “Lusadzor”. According to the law “On the administrative-territorial division of the Republic of Armenia” dated 7 November 1995, it was integrated into the administrative area of the Tavush province.

Geographical coordinates: latitude: 40°56’ N., longitude: 45°08’ E.