Thal desert starts from Khushab,then Bhakkar, Layyah, jhung, and ends in Muzafar garh. . .When coming toward thal from Jhung side, after crossing Chenab river (tremu head) , Atthara hazari (first city after tremu head )suddenly the scene changes from lush green fields to desert. The meeting point is amazing 
secondly in Thal, mankera fort is something you can consider as visiting place. . . Rest is all sand dunes. Half year dry and half year green with grams crops. . . .
The machu national park is just on map but not on ground. It was a forest which has vanished . But present government planted new forests on mm road
I'll keep uploading pics of This area so you can know it better
