"دليل الجزيرة العربية المجلد II" [‎١‎٥‎٦‎٩] (٦٨٨/٦٤٨)

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RENNIE SHOAI.—
A shoal in the Persian Gulf, 54 miles north of Muharraq Island, in the Bahrain Archi
pelago. It is situated in Lat. 27° 4' N., Long. 60° 42' E. and marks the place where tho
shallow waters of Bahrain may be said to end. It was discovered by the E.I .C. schooner
Constance, Lieutenant .1. Rennie, I.N., 1848, is a small shoa], I J miles long by 8 cables
wide ; the bottom consists of sand with lumps of rock, the least water being 2^ fathoms.
At one mile northward and eastward of the shoal, there are depths of 30 fathoms, and
from 20 to 25 fathoms southward and westward, so that it forms a kind of outlier of the
Great Pearl bank. It is a danger for vessels going between Bahrain and Bushire, or
other places to the northward. Nothing was seen to indicate the shoal when it was
passed over in a depth of 4^ fathoms.
In 1897, H.M.S. Sphinx reported that a shoal of about 19 feet existed 2J miles S. h
W. from the Rennie Shoal ; it was not then properly examined, but in 1903 H.M.S.
Lapwing confirmed the existence and position of this shoal, and in 1906 the Ss!
Warocnga, drawing only 15 feet, touched on it, showing that there is less water over-
it than had been supposed. It is shown as 2h fathoms on the chart 2,8376.
Depths of 5.1 and 6 fathoms have also been reported to exist over a considerable area
some 20 miles east by north from the entrance to Bahrain harbour.
There is a 3-fathom patch on the Ashirah bank S. by W. i W. 16 miles from the Rennie
Shoal.
In April 1907, Commander Heneage, H.M.S Hyacinth, reported a depth of 41
fathoms in approximately Lat. 26° 35' N. Long. 50° 53|' E. Depths of 4|, ^ and 0
fathoms, respectively, were found at U, 3, and 5 miles S. 33° W., and 7 fathoms 3i
miles N. 33° E., from the position indicated above. It would appear therefore that
the shoal with 4^ and 4| fathoms already charted from the report of the Commander
of the R.I.M.S. Lawrence in 1898 is of greater extent than was supposed.
RGHABAH—
A village in the 'Aridh District {q. r.) of central Arabia.
RGHABAH—
A village near the boundary between Washam and 'Aridh, in central Arabia. Leach-
man says that Rghabah is situated about 28 miles from Tharmidah on the route to Al-
Barrah and that along that route the Arar hills end, towards the south, in a long crag
from which Rghabah lies perhaps 2 miles to the north-east. According to the Persian
Oul] Gazetteer, there is another village called Rghabah lying 18 miles east by north from
Tharmidah ; see 'Aridh. These two villages are possibly identical.
RGHAILAH—
A tract in the Ghamls Nahiyah of the Shamlyah Qadha {q.v.), in 'Iraq.
Rl'-AS-SALF—
A defile in Jabal 'Aja {q.v.), in the Jabal Shammar principality of Najd.
RI AN—
See (Bat-ha) Tarzah.
RIDAINlYAH (A e)—
Some wells in Wadi-al-Miyah {q.v.), in the Hasa District of eastern Arabia.
RIDHA—
Some wells in Wadi-al-Miyah {q. v.), in the Hasa District of eastern Arabia.
RIFA'-AL-GHARBI—
Or Rifa'-al-Qibli. A village situated on the bleak, stony plateau of Bahrain Island, 11
miles west-north-west of Rifa'-ash-Sharqi and overlooking the great central denression
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