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Sector 7. The Solomon Islands—East Part

358m high, about 3 miles W of Tanamanu Island; Mount Perry, 348m high, about 5 miles NW of Dome Mountain; and Mount Pata (Mount Barnett), 416m high, the summit of the island. Mbokonimbeti Island (Olevuga Island), separated from

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Nggela Sule by Sandfly Passage, rises to a height of 318m in Mount Panamanauvi (Olevuga), at its S end.

Vatilau Island, NW of Mbokonimbeti Island, has Vatilau Peak, 320m high.

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Depths—Limitations.—The SE end of Nggela Sule is sepa-

rated from Guadalcanal by three deep channels, Lengo Chan- nel, Sealark Channel, and Nggela Channel, all of which run through foul ground.. The Florida Islands are surrounded by the 200m curve, which is parallel with the group and about 3 miles offshore, except in the vicinity of the three channels mentioned above. Dangers within the 200m curve will be dis- cussed later in this sector.

7.44 Tanatau Rock (9°08'S., 160°25'E.), 12.2m high, is

on a low shelving point which forms Tanatau Point, the E end of Nggela Sule. A breaking reef extends 0.2 mile NE from the point.

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Hitchcock Shoal, the only known danger in this area outside

the 200m curve, is a detached coral patch, with a least depth of 6.4m, about 8.5 miles SE of Tantatu Point.

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Matumba Bay (9°10'S., 160°22'E.), about 3.8 miles SW of

Tanatau Point, affords shelter for small craft with local knowledge during W winds in the N part of the bay, but a heavy swell sets in during strong SE winds. The entrance of the bay is 0.2 mile wide between the reefs fringing the entrance points; the depths at the anchorage are 14.6 to 18.3m.

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The Tanaindale Islands (Outside Islands), three in number,

are 13.7m, 16.7m, and 27m high, and extend 0.5 mile S from the W entrance to Matumba Bay. The S islet is marked by a light. A tower, about 12.2m high, stands close N of the light. Mandoleana Island (Mandoliana Isand)(9°12'S., 160°17'E.)

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is about 1 mile offshore. Foul ground extends off the island about 0.2 to 0.4 mile except on the NE side, where it is steep- to.

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Edgell Bank, with a depth of 16.4m, and Norfolk Shoal, with

a depth of 14.6m, are 1.3 miles S and 1.5 miles WSW, respec- tively, from Mandoleana Island. Strong tide rips usually mark their positions.

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Anchorage.—Anchorage can be taken, in 16.4 to 18.3m,

mud, about midway between the N side of Mandoleana Island and the coast. Anchorage can also be taken during the South- east Trades off the NW point of the island, but this can be un- comfortable because of strong tides setting between the island and the coast.

The coast between a position N of Mandoleana Island and Tapoporu Harbor (Barango Harbor) is indented and foul.

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Channels between Guadalcanal Island and the Florida Islands

7.45 Nggela Channel is the fairway immediately S of the E

part of the Florida Islands and traverses the Eastern Fields and Western Fields and the open water between them.

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The Eastern Fields, E and S of Tanatau Point, are several

shoal soundings and well-defined banks; the principal one is Ridge Bank, about 4 miles ESE of Tanatau Point.

7.46 Tanapari Cay (Tanapari Island) (9°20'S., 160°18'E.),

on the S side of Sealark Channel, was a sand cay only a few inches high in 1953. The cay lies near the W end of a narrow coral reef which is just covered at LW and steep-to on its N side. A boulder which dries 1.2m stands on the reef about 0.3 mile NE of the cay. A 3.2m patch is about 0.5 mile SW of Tanapari Cay.

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There are irregular depths for a distance of about 5 miles

WSW of Tanapari Cay. Maxwell Shoal, with a least depth of 5m, is about 2.5 miles WSW of Tanapari Cay. A light is shown from the reef.

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Sealark Reef, 2 miles E of Tanapari Cay, is marked by a

light and has some above-water rocks on its W side; it is steep- to on its N side.

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Lengo Channel is the S of the three channels separating the

Florida Islands and Guadalcanal Island. The channel is 3 to 4 miles wide, with depths of 33 to 55m. Rivers discharging into the channel from Guadalcanal Island often discolor the water giving the appearance of shoals.

Anchorage.—Anchorage may be obtained off any part of the coast on the S side of Lengo Channel (9°22'S., 160°20'E.)

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Pub. 126

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205

The Western Fields are SW of Mandoleana Island. Walker

Rocks, on the N edge of the fields, is 2.75 miles SSW of Mandoleana Island.

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All of the charted dangers on the Eastern Fields and the

Western Fields are marked by tide rips and can usually be distinguished by discoloration.

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Nughu Island (Nugu Island), 5.5 miles SE of Mandoleana

Island, lies on the S edge ofthe Eastern Fields and the Western Fields, about midway between their extremes. The island, completely fringed by a reef and covered with trees 38m high, is nearly divided at its E end, where there is a narrow isthmus of broken coral, which the sea sometimes inundates at HW. Tide rips extend about 1 mile ENE from the E end of Nughu. Jones Reef, a 4.9m patch, is about 0.8 mile N from the W end of Nughu, and Knowles Patches, with depths of 6.1 to 10.9m, extend about 2.5 miles W from the same point.

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Irregular depths are found for a distance of about 7 miles W

and WSW from Nughu Island. A 10.1m patch, within this area, lies about 4.8 miles WSW of Nughu.

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Directions.—From a position 3 miles bearing 076° from

Tanatau Point, make good a course of 228° to pass SE of a 6.9m patch, and NW of a 7.3m patch lying about 1.3 and 3.3 miles S, respectively, of Tanatau. Both of these dangers will probably be seen by their discoloration. When abeam of Ma- tumba Bay, course may be altered to pass about 0.8 mile S of Mandoleana Island and N of Edgell Bank, and when abeam of Norfolk Shoal, a course can be shaped to pass about 1 mile SW of Mbungana Island (Bungana Island), off the entrance to Tapoporu Harbor (Barango Harbor). The principal danger for deep-draft vessels in this channel is Walker Rocks, because they do not show discoloration.

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Sealark Channel, about 1.5 miles in width and deep and

clear, is between the 200m curves extending S from Florida Island and N from Guadalcanal Island. A recommended course of 075°-255° leads midway between the dangers on either side. Nughu Island, a good mark for entering the channel, along with the dangers on the N side of the channel, have been dis-cussed previously above. Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84  |  Page 85  |  Page 86  |  Page 87  |  Page 88  |  Page 89  |  Page 90  |  Page 91  |  Page 92  |  Page 93  |  Page 94  |  Page 95  |  Page 96  |  Page 97  |  Page 98  |  Page 99  |  Page 100  |  Page 101  |  Page 102  |  Page 103  |  Page 104  |  Page 105  |  Page 106  |  Page 107  |  Page 108  |  Page 109  |  Page 110  |  Page 111  |  Page 112  |  Page 113  |  Page 114  |  Page 115  |  Page 116  |  Page 117  |  Page 118  |  Page 119  |  Page 120  |  Page 121  |  Page 122  |  Page 123  |  Page 124  |  Page 125  |  Page 126  |  Page 127  |  Page 128  |  Page 129  |  Page 130  |  Page 131  |  Page 132  |  Page 133  |  Page 134  |  Page 135  |  Page 136  |  Page 137  |  Page 138  |  Page 139  |  Page 140  |  Page 141  |  Page 142  |  Page 143  |  Page 144  |  Page 145  |  Page 146  |  Page 147  |  Page 148  |  Page 149  |  Page 150  |  Page 151  |  Page 152  |  Page 153  |  Page 154  |  Page 155  |  Page 156  |  Page 157  |  Page 158  |  Page 159  |  Page 160  |  Page 161  |  Page 162  |  Page 163  |  Page 164  |  Page 165  |  Page 166  |  Page 167  |  Page 168  |  Page 169  |  Page 170  |  Page 171  |  Page 172  |  Page 173  |  Page 174  |  Page 175  |  Page 176  |  Page 177  |  Page 178  |  Page 179  |  Page 180  |  Page 181  |  Page 182  |  Page 183  |  Page 184  |  Page 185  |  Page 186  |  Page 187  |  Page 188  |  Page 189  |  Page 190  |  Page 191  |  Page 192  |  Page 193  |  Page 194  |  Page 195  |  Page 196  |  Page 197  |  Page 198  |  Page 199  |  Page 200  |  Page 201  |  Page 202  |  Page 203  |  Page 204  |  Page 205  |  Page 206  |  Page 207  |  Page 208  |  Page 209  |  Page 210  |  Page 211  |  Page 212  |  Page 213  |  Page 214  |  Page 215  |  Page 216  |  Page 217  |  Page 218  |  Page 219  |  Page 220  |  Page 221  |  Page 222  |  Page 223  |  Page 224  |  Page 225  |  Page 226  |  Page 227  |  Page 228  |  Page 229  |  Page 230  |  Page 231  |  Page 232  |  Page 233  |  Page 234  |  Page 235  |  Page 236  |  Page 237  |  Page 238  |  Page 239  |  Page 240  |  Page 241  |  Page 242  |  Page 243  |  Page 244  |  Page 245  |  Page 246  |  Page 247  |  Page 248  |  Page 249  |  Page 250  |  Page 251  |  Page 252  |  Page 253  |  Page 254  |  Page 255  |  Page 256  |  Page 257  |  Page 258  |  Page 259  |  Page 260  |  Page 261  |  Page 262  |  Page 263  |  Page 264  |  Page 265  |  Page 266  |  Page 267  |  Page 268  |  Page 269  |  Page 270  |  Page 271  |  Page 272  |  Page 273  |  Page 274  |  Page 275  |  Page 276  |  Page 277  |  Page 278  |  Page 279  |  Page 280  |  Page 281  |  Page 282  |  Page 283  |  Page 284  |  Page 285  |  Page 286  |  Page 287  |  Page 288  |  Page 289  |  Page 290  |  Page 291  |  Page 292  |  Page 293  |  Page 294  |  Page 295  |  Page 296  |  Page 297  |  Page 298  |  Page 299  |  Page 300  |  Page 301  |  Page 302  |  Page 303  |  Page 304  |  Page 305  |  Page 306  |  Page 307  |  Page 308  |  Page 309  |  Page 310
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