The desert has a length of about 480 kilometers and 320 kilometers wide. In total, the total area of Dasht-e Lut reaches approximately 51,800 square kilometers.
Dasht-e Lut desert valleys also are the most dry and hot in the world. According to NASA satellite record, there is one area where surface temperatures never reached 71 degrees Celsius. This is the record highest temperature ever occurred on Earth's surface.
The area was called Gandom Beriyan (roasted grain), the wide reach about 480 square kilometers. As quoted from Earth Snapshot, April 27, 2011, the cause of the high temperature in the region is because the surface is covered by volcanic lava.
The dark layer absorbs a lot of sunlight. Due to the temperature difference with the area that have different heights in the vicinity, the region formed the wind tunnel.
The eastern part of Dasht-e Lut is a full lowland salt content. In the middle of the mountains and friends have parallel grooves carved naturally by winds reaching 150 kilometers in length and height to 75 meters.
This area is also full of ravines and holes. In the southeast, there is a vast desert with sand dunes reaching a height of 300 meters. Sand dunes in the region is one of the highest in the world.