Rock formations resulting from differential erosion, Goreme Valley, Cappadocia, Turkey, Eurasia

Fairy Chimneys, rock formations resulting from differential erosion, Pasabag near Zelve, Cappadocia, Turkey, Eurasia

Rock formations resulting from differential erosion, Goreme Valley, Cappadocia, Anatolia, Turkey, Asia Minor, Asia

A differential GPS being used in real time kinematic survey, to survey the extent of the Durham canyon flooding feature, County Durham, England, United Kingdom, Europe

A differential GPS being used in real time kinematic survey, to survey the extent of the Durham canyon flooding feature, County Durham, England, United Kingdom, Europe

A differential GPS being used in real time kinematic survey, to survey the extent of the Durham canyon flooding feature, County Durham, England, United Kingdom, Europe

A differential GPS being used in real time kinematic survey, to survey the extent of the Durham canyon flooding feature, County Durham, England, United Kingdom, Europe