🇵🇰 Pakistan · Hydraulic works
Zana Dam & Karez Outflow System (Pishin Valley Headwaters)
Ghaznavid to Durrani to British · Pishin Pashtun–Baloch valley tribal hydraulic engineers
Headwaters dam–karez hybrid at Zana Pass: 88-m rockfill dam feeding 3 galleries (1.8-4.2 km) irrigating 420 ha.