The 5 worth mentioning passes are :
Bolan Pass, Khojak Pass, Lak Pass, Harnai Pass, and Gonshero Pass
The Bolan Pass, at an elevation of 1,793 m (5,884 ft) above sea level is a high mountain pass through the Toba Kakar Range of Balochistan province in western Pakistan, 120 kilometers from the Afghanistan border.
It’s important to be prepared on this road. At a distance of 120 km from the border of Afghanistan, Bolan Pass is a mountain pass in the Balochistan Province of Pakistan that connects Jacobabad and Sibbi to Quetta city. Check weather forecasts before leaving home, and remember that it becomes cooler and often more prone to storms at higher elevations.
The weather in this zone is harsh and highly unpredictable and it does not take much time for the bright sunshine to change over to moderate to heavy snowfall. The Bolan Pass is only open at this time for locals and aid workers and it’s an alternative to the Khyber Pass further north. This area is definitely not safe. You should get an armed guard with you. A sudden drop in the temperature, even in summer, can trigger winter-like conditions. It has a well-deserved reputation for being dangerous because of unpredictable snowstorms and blizzards, and driving under these conditions, can be extremely challenging.
Watch out for sudden loose-gravel breaks. This pass has a significant history background being a mountain pass, that connects Central Asia and South Asia. Along Bolan Pass where the road winds through picturesque mountains one is reminded of the huge odds that the armies from Central Asia and the South must have faced in their raids on the plains of present-day Pakistan.
The historic Khojak tunnel is about 113 km from Quetta on the Quetta-Chaman Railway line, located between the towns of Sanzala and Shelabagh. It was built in 3 years time between 1888 and 1891. The length of the tunnel is about 4 km and was the fourth longest tunnel in the world at the time to date it is the 2nd longest tunnel in Pakistan, after the Lowari tunnel. During the British rule of India, a railway line, Sibi-Quetta-Chaman, was built with the aim of connecting with Kandahar, Afghanistan. The main purpose was to stop the Russian invasion of India through the Bolan Pass. Later, the idea to connect it up to Kandahar was dropped, and the project was renamed Chaman Extension Railway. Chaman is the last Pakistani city and railway station on this line at the Pak-Afghan border.
In 1976, the State Bank of Pakistan paid tribute to this great piece of engineering by printing the Khojak Tunnel entrance image on the Rupee 5 note. This note remained in circulation until 2005.
Lak Pass Quetta Balochistan Pakistan is also another pass, located in Balochistan, Pakistan. It also connects the different ways like Kalat and Quetta at a point where the highway makes a turn for Koh-e-Taftan, Saindak copper mines, and Zahidan in Iran and the other section links Karachi via Kalat, Khuzdar, and Bela.
Lak Pass Quetta has three ways to go to lak pass from Sariab Road and AH2 at a distance far from Quetta between 25.6 Km, Sariab Road, Bolan Road and AH2 at a distance between Quetta is 30.2 Km and Western Bypass distance far from Quetta about 37.4 Km, so these are the three ways to reach Quetta from lak pass.
The entire population of Kharwari Baba and for that matter of the entire Ziarat, migrates to Harnai in extreme winter. Harnai Pass, about an hour’s drive from Loralai, is just as spectacular as the Khyber Pass near Peshawar.
Gonshero Pass is right at the border of Afghanistan. It is located in the Chatham Hill Range. It is 30.1 km long