Quetta is the capital and largest city of the Pakistani province of Balochistan. It is the tenth largest city in Pakistan, with a population o…Quetta is the capital and largest city of the Pakistani province of Balochistan. It is the tenth largest city in Pakistan, with a population of over 1.6 million. It is situated in the south-west of the country, lying in a valley surrounded by mountains on all sides. Quetta is at an average elevation of 1,680 metres above sea level, making it Pakistan's highest altitude major city. The city is known as the "Fruit Garden of Pakistan" due to the numerous fruit orchards in and around it and the large variety of fresh and dried fruits produced there.