<Tr> <Th> Province </Th> <Td> Khorasan, Semnan, Tehran, Isfahan, Yazd </Td> </Tr> <Tr> <Th> Coordinates </Th> <Td> 34 ° 44 ′ 15.2" N 54 ° 49 ′ 37.56" E ﻿ / ﻿ 34.737556 ° N 54.8271000 ° E ﻿ / 34.737556; 54.8271000 Coordinates: 34 ° 44 ′ 15.2" N 54 ° 49 ′ 37.56" E ﻿ / ﻿ 34.737556 ° N 54.8271000 ° E ﻿ / 34.737556; 54.8271000 </Td> </Tr> <P> Dasht - e Kavir (Persian: دشت كوير ‎, lit .' Low Plains' in classical Persian, from khwar (low), and dasht (plain), flatland), also known as Kavir - e Namak (lit .' salty lowlands') and the Great Salt Desert, is a large desert lying in the middle of the Iranian plateau . It is about 800 - kilometre - long (500 mi) by 320 - kilometre - wide (200 mi) with a total surface area of about 77,600 km (30,000 sq mi), making it the Earth's 26th largest desert . The area of this desert stretches from the Alborz mountain range in the north - west to the Dasht - e Lut in the south - east . It is partitioned among the Iranian provinces of Khorasan, Semnan, Tehran, Isfahan and Yazd </P> <P> In the center of the desert lies the Kavir Buzurg (Great Kavir), which is about 320 km long and 160 km (99 mi) wide . In the western part of the desert lies the Daryahcheh - e Namak ("salt lake 1,800 km (690 sq mi). It contains some large salt plates in a mosaic - like shape . It is part of a 4,000 km (1,500 sq mi) protected ecological zone, the Kavir National Park . One of the most desolate parts of Dasht - e Kavir is the Rig - e Jenn (" devil's dunes). </P>

Where is the great salt desert located on a map