Simplify the following text for a Grade 5 native English-speaking person.
Original: The Adrar des Ifoghas is a sandstone massif in Mali 's Kidal Region , having an area of about 250,000 kmÂ .
Simplified: The Adrar des Ifoghas is a sandstone high area in the Kidal Region of Mali . Is has an area of about 250,000 kmÂ .