The coastal belt of East Pakistan covers a substantial part of
Khulna , Bakhargonj , Patuakhali , Noakhali and Chittagong districts along
the Bay of Bengal . In the western part of the belt, lies the Sundarban
Forests with a width of about 60 miles and almost equivalent depth • The
presence of mangrove and other species of the Sundarbans along the stream
banks and around the homestead, almost throughout the balance part of the
coastal belt , indicates that the Sundarban Forests extended throughout the
coastal belt in the past • The ramnants of such forests are still visible
in the Matamuri Delta about 30 miles north of Cox’s Bazar town , known as
“Chakaria Sundarban Forests” .