Paperfao.orgQanat of Gonabad south — conjunctiveFAO · 2008Open on fao.org 0Why it matters: Conjunctive qanat+dam analogPlacesThe place this coversBand-e Darreh South Extension Dam (Birjand Darreh South Gravity Dam)🇮🇷 Iran · South Khorasan Province, Birjand County, Band-e Darreh gorge south branch (Bagh-e Sarhangi south) · Hydraulic works