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Pulau Alang Besar (E Sumatra)

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Pulau Alang Besar (E Sumatra)

To precisely geolocate this site. Update if necessary.

Localisation

Mer du Nord
Sumatra (Indonesia)
Sumatra E coast (Indonesia)
Tanjung Jamboaye to Tg Sinaboi (NE Sumatra)
Tanjung Siapiapi to tg Sinaboi (E Sumatra)
Pulau Alang Besar (E Sumatra)
LatitudeLongitude
DMS------
DM------
DD------

Characteristics

Island / Atoll

Description

Pulau Alang Besar, or Pulau Halang as it is also referred to, is situated off the eastern coast of Sumatra in Riau Province, Pabupaten Bengkalis. The island and associated coastline lie at Kuala Rokan.

This small mangrove island and the nearby coastline contain extensive habitats of significance for waterbirds, crocodiles and local fisheries.

Pulau Alang-besar, about 25 miles SE of Tanjung Pejudian, lies in the entrance of the Sungai Rokan.

The approach to this river is fouled by mudbanks. Off Tanjung Belanda, the E entrance point, and Tanjung Sinaboi about 16 miles ENE, the coastal bank dries out from 2.5 to 6 miles.
A shoal, with depths of less than 10m, then extends about 26 miles NW from this section of coast and about 25 miles N from Pulau Alang-besar.

2012/01/23
Update
Jojo
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Sites around Pulau Alang Besar (E Sumatra)

Flying distances - Direct line

Pyramid shoal (Malaysia)

56nm
74°
Pyramid Shoal, which lies on the N side of the SE end of South Sands, has a least depth of 3.4m, hard sand, and is the most dangerous shoal in the area because of its depth and protrusion into the fairway.
A lighted buoy is moored about 7 miles SE of Pyramid Shoal. A depth of about ...
28 Dec 11
Jojo

Tanjung Sinaboi (E Sumatra)

22nm
72°
Tanjung Sinaboi, low and thickly wooded, is the NE extremity of the peninsula separating theSungai Rokan from Selat Rupat.
Pulau Sinaboi, a small lightcolored islet, lies close NW of Tanjung Sinaboi and shows up well against the darker growth of the mainland.
25 Jan 12
Jojo

Tanjung Percudian (E Sumatra

29nm
314°
Tanjung Percudian is fringed by mangroves and may be easily identified by the high trees behind it, decreasing very rapidly in elevation upon closer approach.
Panipahan Village stands 4 miles S of this point.
Between Panipahan Village and the entrance of the Sungai Rokan, about ...
23 Jan 12
Jojo

Tanjung Pertandangan (E Sumatra)

41nm
319°
Between Tanjung Pertandangan and Tanjung Sinaboi, about 56 miles ESE, the only points of identification are the river mouths.
The mangrove covered coast is mostly muddy and low lying. The coastal bank, as far out as the 10m curve, is marked by fishing stakes and enclosures. Fishing ...
23 Jan 12
Jojo

Amazon Maru Shoal (Selangor Malaysia)

45nm
24°
Amazon Mara Shoal, with a least depth of 8.4m, lies about 2.2 miles S of One Fathom Bank Light.A dangerous wreck, marked by a lighted buoy, lies in the southeastbound lane of the Traffic Separation Scheme. Another dangerous wreck, with a depth of 16m over it, lies 10 miles WNW of ...
24 Dec 11
Jojo

One Fathom Bank (Selangor Malaysia)

48nm
22°
One Fathom Bank (2°53'N., 100°59'E.) is a detached patch, with depths from 3 to 10m, which extends 5 miles in a NW direction reaching 1 mile in width. One Fathom Bank Light is situated 0.6 mile from the SE extremity of the bank.
A stranded wreck is situated about 0.7 mile NW ...
12 Mar 13