By D Rajasekhar Reddy
The authoris a former Professor of Geology, Andhra University, Visakhapatnam. firstname.lastname@example.org. The article should be cited as Reddy R. D. 2019. Erra Matti Dibbalu: Coastal Red Sand Dunes of Visakhapatnam,
Geography and You, 19(25 & 26): 36-41
Picturesque and rare, the Late Quaternary Red Sand Dunes—Erra Matti Dibbalu is spread over 10 sq km between the coasts of Visakhapatnam and Beemunipatnam in Andhra Pradesh. Owing to its geological significance, the Geological Survey of India declared it as a National Geoheritage Site in 2014 while state government notified it as a Protected Area in 2016. Attempts are now underway to establish a Visakhapatnam Geopark by combining several geological and cultural sites in the region.
The spectacular Erra Matti Dibbalu that stretches between Visakhapatnam and Bheemunipatnam along the coast is a marvelous gift of nature. The low-lying dunes with a maximum elevation of 90 m above mean sea level (msl) is located 20 km to the northeast of Visakhapatnam and 4 km southwest of Bhimunipatnam. The width of the dunes vary from 200 m to 2 km, running for 5 km along the coast in an east-west direction. Besides being unusual, the rare sand dunes...