Wikipedia
Gökçesu
'''Gökçesu ''' is a belde (town) in Mengen district of Bolu Province, Turkey. It is sitıated at in the forest between two mountain ranges . The distance to Mengen is and to Bolu is . The population of Gökçesu is 2,272 as of 2013. Up to 73 BC, the area around the town was a part of Bithynia Kingdom . Then it became a part of the Roman and the Byzantine Empires. In 1359 it was incorporated into the Ottoman Empire. In 1991 it was declared a seat of township.