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238

Sector 9. The Bismarck Archipelago

Cape Sena, there are two prominent dips, with the range falling to a height of 92m in the E and 183m in the W.

9.8

The Schleinitz Mountains, NW of the Lelat Plateau, attain a

height of 750m. Northwest of this range the mountains become lower and gradually fall to 213 to 244m. Mount Bokave, 500m high and prominent, is located about 40 miles SE of North Cape. The land SE of this cape is nearly flat, but is slightly elevated in the interior.

9.8

The mountains are densely wooded to the summits and only

the lower spurs are inhabited. The N coast is steep-to and has a clear passage between it and the off-lying islands. The NW part is of coral formation and reef-fringed.

9.8

Caution.—Vessels should pass outside of the islands off-

lying New Ireland, or to the S of it due to the uncertainty of the depths off the island’s NE coast.

New Ireland—Northeast Coast

9.9 Widely-separated groups of islands lie between 13

and 115 miles off the E and NE coasts of New Ireland. The wide channels between the island groups and those separating them from New Ireland are mostly clear and have depths in excess of 183m.

The NE and E coasts of New Ireland are reef-fringed; widely-scattered islets, detached reefs, and shoals are encoun- tered within 2 miles of the shore. Shoal water is reported to extend seaward for about 4 miles from a position about 8 miles NE of Cape St. George.

9.9 9.9

Tides—Currents.—A NNE current, with a rate of about 1.4

knots, was reported to the E of the S end of New Ireland. Observations over an 18 day period in November and Decem- ber in an area from 5 to 25 miles SE of Cape St. George showed an average set to the SW at a rate of a little over 1 knot. This current was remarkably uniform during the period in which it was observed. Numerous tide rips occur in this area. The current off the NE coast of New Ireland, between Cape

9.9

Mamorodu and North Cape, set to the SE at a rate of 0.5 knot during the Northwest Monsoon. The tidal currents along the NE coast set NW during the rising tide and SE during the falling tide. A reliable source has stated that currents usually run NW at a rate of about 1 knot off the NE coast of New Ire- land.

9.9

Cape St. George (4°51'S., 152°54'E.), marked by a light, is

the extreme S point of New Ireland and is dominated by a mountain range and the high and rugged land to the N. Between Cape St. George and Lambonot Point, 1.75 miles

9.9

NE, the coast is rugged and steep-to. Iro Island, which lies about 0.6 mile E of Lambonot Point, is the outer danger. Loumtas Rock is about 0.5 mile SE of the same point.

Lanisso Bay, entered between Lambonot Point and Cape Bougainville, 3 miles NE, offers some protection from N winds. Laussamanni Rock lies in the N part of the bay, 2 miles N of Lambonot Point.

9.9 9.9

Lavinia Cove indents the W side of Lanisso Bay. The water

shoals rapidly within the entrance and the S side and head of the cove appear encumbered with foul ground.

9.9

Anchorage.—Anchorage, protected from W winds, can be

taken, in 9 to 13m, within the bluff forming the S entrance point of the cove.

Pub. 126

9.10 Between Cape Bougainville and East Cape, the coast

is bordered with stretches of sand alternating with small swamps and cliffs. This coast has not been examined closely, but shoals have been reported to extend up to 4 miles offshore from a point 3.5 miles N of Cape Bougainville. Cape Bougain- ville is reported to be a good radar target at 19 miles. It has been reported that the Alas Islands, 10.5 miles NE of Cape Bougainville, are close to the shore and are not very prominent, but Tawau Island, 8 miles NE of the same point, is high, has a vertical rocky base, and serves as an excellent landmark.

Between East Cape (4°14'S., 153°06'E.) and Cape Matana- tamberan, the coast, which is known as the Lauru District, has not been closely examined. The former point is about 61m high and is densely wooded for some distance, rising abruptly to a height of 381m.

9.10 9.10

Between Cape Matanatamberan and Cape Sass, 117 miles

NW, the coast has not been completely surveyed; then to North Cape, it has only been partially examined. A mission station is situated at Kudukudu, about 13 miles W of Cape Matanatam- beran.

9.10

Muliama Harbor, about 10 miles NW of East Cape, is formed

by an off-lying reef that lies up to 2 miles offshore. The harbor is about 0.2 mile wide and has depths over 3.6m. Small vessels with local knowledge can find anchorage, in 10.9 to 12.8m, pro- tected from all winds except those from the N and E.

On the W side of Cape Sena, off Kombon Plantation, anchorage is available, in 22m, uneven bottom, about 0.5 mile offshore.

9.10

Porpop Harbor, entered about 1.5 miles S of Cape Matana- tamberan, is nearly 1 mile long in a NNW-SSE direction and 137 to 457m wide between reefs. Depths in the harbor are at least 14.6m.

9.10

9.11 Elizabeth Bay, entered between Cape Matanatamberan

and Cape Dingra, is open to all but SE winds. It affords anchor- age to vessels with local knowledge, in 35m, partly protected from the N by shoals and reefs. There are many villages around the shores of the bay.

9.11

Caution.—Between Cape Namarodu and a point about 8

miles SSE, there is a sunken barrier reef lying from 0.5 to 1.5 miles offshore. It is reported to have a depth of 4.9m; the sea often breaks on it. Vessels should give the coast a wide berth in this vicinity.

9.12 Nabuto Bay (3°38'S., 152°27'E.), entered W of Cape

Nama-rodu, is fringed by a reef that extends 0.5 mile offshore. The W side and head of the bay are fringed by reefs which extend 0.65 mile and 0.25 mile offshore, respectively.

9.12

Namatanai Road indents the SE part of Nabuto Bay; there is

a small inner harbor with its entrance between the reefs, about 90m wide, which affords good anchorage and shelter to small craft. There is a government station, post office, and airport at Namatanai. Bopire village is situated on the W side of the bay. There is a wharf in the harbor, with a depth of 3.7m alongside. The depths in Nabuto Bay are very irregular and the bay is

9.12

open to winds between the NE and NW. A heavy swell sets into the bay during strong SE winds.

Anchorage.—Anchorage can be taken, in 29m, in Nama- tanai Road, about 0.3 mile from the coastal reef, with a chapel

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