Karakoram Highway the lake by small vessels, to be reloaded onto trucks at the other end. In July 2012 Pakistan began constructing a revised route around the lake at a higher elevation with five new tunnels, with total length of 7.12 km, and two new bridges. The work was contracted out to the China Road & Bridge Corporation (CRBC) and was completed in September 2015—see Karakorum Highway Realignment (China-Pakistan Friendship Tunnels) below. At in length, the Pakistani section of the highway starts at Abbottabad, although the N-35 of which KKH is now part, officially starts from Hasan Abdal. The highway meets the
Tourism in Pakistan a large number of trucks and lorries importing and exporting goods in and out of the region. The Babusar Pass is another mountain pass connecting the Thak Nala with Chilas on the Karakorum Highway. The Lowari Pass is another pass which connects Chitral with Dir via the Lowari Tunnel. The highest mountain pass in Pakistan is Shandur Pass which connects Chitral to Gilgit and is known as the "Roof of the World". The pass is the centre of three mountain ranges – Hindukush, Pamir and Karakoram. Punjab is the second largest province in Pakistan. It is known for its ancient