BĪĀBĀN, name of the coastal plain that extends south from the
mouth of the Mīnāb river for 88 miles to the cape Raʾs al-Kūh,
which is 30 miles west of the Jask promontory. It is 10 to 15
miles wide and borders on the districts of Jāsk to the
southeast, Rūdbār and Bašākerd (q.v.) to the east, and Mīnāb to
the north. It faces the Sea of Oman to the west. Kūh-e Bīābān,
which reaches a maximum height in the south at 3,946 ft, is the
chief range of hills and forms the eastern boundary. There are
also minor ranges between Kūh-e Bīābān and the sea. The ranges
are generally of sandstone and have been eroded into fantastic
forms. Kūh-e Mobārak (330 ft), which stands back from the
promontory, is a landmark visible from great distances. A number
of wide, deep seasonal streams (Gaz, Hevāy, Karāy, Berīz,
Zangalī), which can become impassable for days at a time in the
winter, bisect the plain. The coast is mostly low and sandy,
with stretches of mangrove swamp in the north. The district is
known for its dangerous quick-san