I heard the Prophet ﷺ saying, "The people will be gathered on the Day of Resurrection on reddish white land like a pure loaf of bread (made of pure fine flour)." Sahl added: That land will have no landmarks for anybody (to make use of).  

سَمِعْتُ النَّبِيَّ ﷺ يَقُولُ يُحْشَرُ النَّاسُ يَوْمَ الْقِيَامَةِ عَلَى أَرْضٍ بَيْضَاءَ عَفْرَاءَ كَقُرْصَةِ نَقِيٍّ قَالَ سَهْلٌ أَوْ غَيْرُهُ لَيْسَ فِيهَا مَعْلَمٌ لأَحَدٍ