Sir Richard Francis Burton,
The Land of Midian (Revisited)…
“ And now the Wady Abá Daumah abruptly changed formation. The red and green traps of the right side made way for grey granite, known by its rounded bulging blocks on the sides and summit, by its false stratification, by its veins of quartz that strewed the sand, and by its quaint weathering—one rock exactly resembled a sitting eagle; a second was a turtle, and a third showed a sphinx in the rough. The Badá plain is backed by a curtain so tall that we seemed, by a common optical delusion, to be descending when we were really ascending rapidly. ”
