Qal`eh Hasan Ali

Qal`eh Hasan Ali is a maar-producing volcanic field located southeast of Kerman Province, Iran. The field is presumed of Holocene age, though it has produced no historic eruptions. Consisting of 14 maars each of different size, its most major caldera is Great Crater, about {convert|1.2|km|mi} in width and {convert|200|-|300|km|mi} in depth. == Ge....
Found on http://en.wikipedia.org/wiki/Qal`eh_Hasan_Ali
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