acquired March 30, 2021

Meandering to the Source



In Turkey, the spring-fed Büyük Menderes River twists and curves its way for 615 kilometers (382 miles) from its source near the town of Sandikli to the Aegean Sea. It is the longest river to discharge into the Aegean.

The river’s sinuous path captured the attention of historians and geographers of antiquity. Strabo wrote of its extreme windiness, and Herodotus referenced its twisting nature. The river’s ancient Greek name Maíandros, or Maeander, became synonymous with the bending character of river courses, and the modern geographical term “meander” was born.

The false-color images above and below were acquired on March 30, 2021, by the Operational Land Imager (OLI) on Landsat 8. The twisting, meandering river, and the many oxbow lakes it has created, stand out as dark blue lines amid the bright green farms.

acquired March 30, 2021

Much of the plain that the Büyük Menderes River flows through is what is known as graben, a seismically active depression in the landscape. In the Holocene Epoch, much of the plain has been an estuary; in fact, it was once the longest estuary of the Aegean Sea. But the brackish waterbody has been filled in by river sediment deposits from the Büyük Menderes over the past 3,500 years, leaving Lake Bafa as its only remnant. Today, many of the ancient harbors of Anatolia—such as Priene, Miletos, and Myous—are landlocked.

NASA Earth Observatory images by Lauren Dauphin, using Landsat data from the U.S. Geological Survey. Story by Laura Rocchio, Landsat Communication and Public Engagement Team.