The Orange River serves as part of the border between Namibia and South Africa. Along the banks of this river, roughly 100km (60 miles) inland from where the river empties into the Atlantic Ocean, irrigation projects take advantage of water from the river and soils from the floodplains to grow produce, turning parts of a normally earth-toned landscape emerald green
From the Collection of NASA images of agricultural patterns on the Guardian
Thanks to @eatingbark