Flint stones in a desert on roadside of a road to Sawda Natheel. Southern Qatar, February 5, 2016
Golden crustose lichen Caloplaca aurantia on a stone in desert near industrial zone of Ras Laffan, north from Doha. Qatar, March 23, 2013
A desert plateau covered by flint stones (view to south-east) 1.5 miles south from Ben Gurion College at Sde Boker. The Middle East, February 15, 2001
A plateau of Negev desert covered by flint stones (view to south-east) 1.5 miles south from Ben Gurion College at Sde Boker. The Middle East, November 17, 2002
Orange-brown disks of fruiting bodies (apothecia) of crustose lichen Caloplaca aurantia a stone in desert near industrial zone of Ras Laffan, north from Doha. Qatar, March 23, 2013
Crazy-paving pattern in the center of crustose lichen Caloplaca aurantia on a stone in desert near industrial zone of Ras Laffan, north from Doha. Qatar, March 23, 2013
Black flint stones covering surface of a desert on roadside of a road to Sawda Natheel. Southern Qatar, February 5, 2016
Patch of rounded crustose lichen Caloplaca aurantia on a stone in desert near industrial zone of Ras Laffan, north from Doha. Qatar, March 23, 2013
Round patch of Caloplaca aurantia lichen on a stone in desert near industrial zone of Ras Laffan, north from Doha. Qatar, March 23, 2013
Flint stones and a plant of a plateau of Negev desert 1.5 miles south from Ben Gurion College at Sde Boker. The Middle East, November 17, 2002
Old stone crosses in cemetery of Holy Annunciation Nikandrova Desert Monastery (Svyato-Blagoveshchenskaya Nikandrova Pustyn). Pskov Region, Russia, September 8, 2013
Flint stones of a plateau of Negev desert 1.5 miles south from Ben Gurion College at Sde Boker. The Middle East, November 17, 2002
Baluch ground gecko Bunopus tuberculatus (Baiuch Rock Gecko, a lizard) found under a stone in desert. Harrarah, 40 miles south-west from Doha. Qatar, March 5, 2010
Flint stone with a wind carved hole on desert plain in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Fossil sea urchin (echinoid, echinoderm) among flint stones on desert plane in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Yellow crustose lichen Caloplaca aurantia on a stone in desert near industrial zone of Ras Laffan, north from Doha. Qatar, March 23, 2013
