Torghar District (Pashto: تور غر ولسوالۍ, Urdu: ضلع تورغر) formerly known as Kala Dhaka (Hindko: کالا ڈهاکہ, English: Black Mountain) is a district in the Hazara Division of the Khyber Pakhtunkhwa province of Pakistan. It was officially separated from Mansehra District in 2011 under Article 246 of the Constitution of the Islamic Republic of Pakistan.

Primarily, Pashtuns dominate this area. The main Pashtun tribe of Torghar is Yusufzai, which constitutes more than half of the district population.

By 1849, the British had established their control over the entire region of Hazara. However, the local tribes exhibited occasional rebellious tendencies, with notable instances involving the Swatis and the Tor Ghar tribes. The British responded with numerous expeditions to quell these uprisings, a series of campaigns lasting from 1852 to the 1920s.

The Hazara Expedition of 1888, also known as the Black Mountain Expedition or the First Hazara Expedition, was a military campaign by the British against the tribes of Tor Ghar.

On 18 June 1888, two British officers and four Gurkha soldiers were killed in an altercation between the British reconnaissance patrols and the local tribes. As a response, the Hazara Field Force was assembled and began its march on 4 October 1888, after an ultimatum had not been satisfied by the tribes by October 2, 1888. The first phase of the campaign ended with the Hassanzai and Akazai tribes requesting an armistice on October 19, 1888. The second phase of the campaign targeted the Swati tribe that lived north of the Black Mountain such as the Allaiwals, the Parari Sayyids and the Tikariwals. The campaign ended when the Allaiwal village of Pokal was occupied and destroyed by the British on November 2 and 3, 1888.

The then Commander in Chief of India General Sir Frederick Roberts viewed the Black Mountain Expedition as:

a success from a military point of view, but ... the determination of the Punjab Government to limit the sphere of action of the troops, and to hurry out of the country, prevented our reaping any political advantage. We lost a grand opportunity for gaining control over this lawless and troublesome district; no survey was made, no roads opened out, the tribesmen were not made to feel our power, and, consequently, very soon another costly expedition had to be undertaken.

The failure of the tribes to honour the agreements that ended the 1888 campaign led to a further two-month expedition by a Hazara Field Force in 1891. General Roberts observed that