Download Sample GSI 25k Geological Maps of Iran is a digital collection of geological map sheets covering areas of Iran at a scale of 1:25,000, published in Tehran by Sāzmān-i Zamīnʹshināsī va Iktishāfāt-i Maʻdanī-i Kishvar (GSI), the Geological Survey of Iran, between 2009 and 2016 A.D. A total of 201 sheets are available. The maps provide detailed geological coverage and present mapped information on rock units, geological formations, structures, faults and other geological features. Designed for reference and research use, the collection is particularly useful for scholars and professionals working in geology, earth sciences, mineral exploration, environmental studies and regional research. The maps are in English and supplied in digital format for convenient consultation, comparison and archival research. Available as individual sheets or as a complete collection.
