Lake Urmia, Iran
This image of the northern part of Lake Urmia - the largest lake in Iran - was acquired by the SPOT-4 satellite on 28 September 2012.
Urmia is a salt-water inland lake. It is 140 km long from north to south and 40-55 km wide. The average depth of the lake is 5 metres with a maximum depth of 16 metres.
The lake is believed by some to have medicinal properties. In autumn the salt concentration grows dramatically and in winter the lake does not freeze due to the high levels of salt in the water.
Over the past few years, the lake has been drying, due to droughts.
There are over 100 islands on the lake.
View the full resolution image.