Khojak Pass

Khojak Pass (el. 7,513 ft) connects Qila Abdullah with Chaman in the province of Baluchistan, Pakistan.
khojak pass is between Quetta and Chaman. 22 kilometer before Chaman. 
Khojak tunnel 5.2 kilometer long (3.2 miles). 
Small forts to defend pass on each hill top. 
Picture of khojak tunnel is on old five rupees note.