'Military Report on The Anglo-Iranian Oil Company's (South Iranian) Oilfield Area' [‎7v] (19/150)

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Fallahieh (Shadgan) and Mashur districts develop in winter into
swamps covering a considerable area, while west of the river
neighbourhood of Hawizeh (Havizeh) is a perennial marsh.
Date trees line the banks of the Shatt-el-Arab, of the upper Bah-
pnfl.palnr channel bounding Abadan island, and of the Ivarun to
20 miles above Mohammerah (Khorramshahr). The only
navigable river is the Karun. The Jarrahi river flows into the
Fallahieh (Shadgan) marshes where it forms a large lake with
an overflow into the Khor Musa. Some 40 miles further east
the Hindiyan River enters the Gulf. Both the Karun and the
Jarrahi run generally between steep banks of some height.
North-east of the general line Sham Saidan—Khalafabad
Dar-i-Khazineh—Ahwaz low slightly undulating country occurs
up to the sharply marked edge of the foothills where steep, naked
rocks rise abruptly from the plain to form a ridge varying in
height from 1,600 feet to 2,000 feet. Thence a series of parallel
ridges with steep stony slopes, running uniformly from north
west to south-east, succeed each other, rising from about 1,500
feet to 2,500 feet with occasional peaks of greater altitude.
The intervening valleys are undulating and treeless, covered with
grass in the winter but more or less barren in summer. The
water which drains from them is generally bitter, being im
pregnated with mineral salts. This quality is characteristic of
nearly all rivers in these hills, v. ith the notable exceptions of the
Karun and the Rud-i-Zard ; (the upper .Jarrahi) the Marun and
the Zuhra.
The general layout of the Central and Southern Areas of the
A. I. O. C. oilfields is shown on Map 1.
The main oil pipe lines run from M. I. S. to Abadan. 1 hese
are joined by three main oil pipe-lines (from Haft Kel) at Wais
and two other lines (also from Haft Kel) at Kut Abdulla.
The oilfields at Masjid-i-Suleiman cover about 104 square
miles in area. The oil pumping station and the power station,
on which the water supply to this field depends, are located at
Tembi. The main water pumping station for the field is on the
Karun at Godar Landor, immediately to the north-east of the
field. The original water supply pumping station for the oil
field at Masjid-i-Suleiman was situated at Dar-i-Khazineh.
When the Godar Landor system was installed the Dar-i-Khazineh
system was kept for a time as an alternative system in case of
emergency, but the station has since been demolished, and the
water pipe-lino lifted. An emergency water supply derived
from shallow wells is being developed in the Naftak area at the
north-west end of the field.