"The Diamer District (Urdu: ضلع دیامر), also spelled Diamir District,) is a district in Gilgit-Baltistan territory of Pakistan. The headquarters of the district is the town of Chilas. The district is bounded by on the north by the Tangir and the Gilgit districts, on the east by the Astore District, on the south by the Mansehra district of Pakistan's Khyber Pakhtunkhwa Province and the Neelum District of Azad Kashmir, and on the west by the Upper Kohistan District of Khyber Pakhtunkhwa Province. The Karakoram Highway passes through the Diamer District."
"The impressive square fortress, with around forty bastions that stand thirty feet tall and walls with a circumference of 1500 meters, is visible for many miles in the Cholistan Desert. Its smooth, wide bastions create an imposing structure, unlikely to be breached by advancing forces. Thalpas, located opposite to the Chilas town, bears the most abundant collection of rock-art in Pakistan — the Pakistan-German Archaeological Mission has published about them in six dedicated volumes and traced them to Greco-Buddhist antiquity.[a] Buddhist Stupas and anthropomorphic Buddhas remain the most common subject of rock-carvings in and around Chilas."
"Karl Jettmar suggests that Chilas might have had been a Buddhist sanctuary while Harald Hauptmann hypothesizes Thalpas to be the "Talilo" of Chinese sources; however, in absence of excavations, such claims remain in the realm of speculations. - Source Wikipedia"