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282

Sector 10. Micronesia, Palau, and Guam

current, with a velocity of 3 knots, has been reported off the S end of Fais.

10.36

Ulithi Atoll (9°55'N., 139°40'E.) is extensive and has over

30 islets, covered with coconut palms, on its reef. The islets, which are all reef-fringed, do not attain a height of more than 28m to the tops of the trees. The soil consists of broken coral and is not suitable for cultivation. Many of the islets are com- posed of shifting sand dunes. The main population center for the atoll is on Falalop.

10.36

The lagoon has been swept to depths indicated on the chart.

Numerous shoal patches exist in the lagoon. It is reported that uncharted shoals may exist outside the swept areas.

10.36

Zohhoiiyoru Bank, marked by discoloration and located

about 13 miles E of Ulithi Atoll, is submerged except for Gielap and Iar, islets on its NW extremity. Depths of less than 9.1m are found over the greater part of the bank.

A detached shoal, which lies between Ulithi Atoll and the N part of Zohhoiiyoru Bank, has several small islets on it. A 7m patch has been reported to lie about 8 miles ENE of the atoll’s S end.

10.36 10.36 10.36

There are a number of passages leading into the lagoon;

some of these have been swept to depths indicated on the chart. Mugai Channel, situated on the E side of the atoll, is reported to be the best. The reef on the NE side of Towachi Channel, situated on the W side of the atoll, is reported to be clearly identifiable.

10.36

Tides—Currents.—Tidal currents are strong in the vicinity

of Zohhoiiyoru Bank and Ulithi Atoll. Between Falalop and Asor, the currents are reported to be strong. In the lagoon, the tidal currents are weak and erratic.

10.36

Aspect.—Asor, an islet on the NE side of the atoll, is re-

ported as being visible from 10 miles under favorable con- ditions.

10.36

A school house stands on Asor. A high school, formerly a

Loran station, stands on Falalop. There is a 0.5 mile long E-W runway on the island.

10.36

Anchorage.—Urushi Anchorage, in the NE part of the la-

goon, provides anchorage space for several vessels, in 27 to 39m, sand, good holding ground. Vessels using this anchorage must avoid several detached shoals.

10.36

Anchorage for large vessels has been reported to be available

off the N of Falalop, but only under ideal conditions. Keep in mind the strong tidal currents if anchoring here.

10.36

Caution.—A fisheries buoy has been established in a posi-

tion about 50 miles SW of the atoll. 10.37 The Yap Islands (9°32'N., 138°10'E.) comprise a

group of four islands, separated by narrow and shallow chan- nels. The group differs from other islands of the Carolines, in- asmuch as they are larger, have a fertile soil, and are not of volcanic nature. The islands are hilly and covered with mag- nificent forests of coconut and areca palms, bamboos, and croton trees. Tageren Channel, narrow and shoal, separates Yap Island from Gagil-Tamil Island. A bridge spans the channel. The group is fringed by a reef. There are several breaks in

10.37

the reef leading to inlets and harbors, but the only one used by shipping is Tamil Harbor. The other entrances are marked by private aids, and are suitable only for small craft under ideal conditions. Garim, a jagged rock on the reef E of the S end of Yap, is prominent when viewed from the NE.

Pub. 126

10.38

Tamil Harbor

Tides—Currents.—The spring range here is 1.3m, while the mean range is 0.9m.

10.38

Currents set W across the entrance to Tamil Harbor, especi-

ally during the NE trades. Tidal currents within the channel en- trance range from 0.5 to 0.75 knot, while within Tamil Harbor proper the current rates are less.

10.38

Depths—Limitations.—See also the “Caution” topic

below. The entrance channel has a least charted width of 45m between the 20m curves. The channel is entered about 0.3 mile E of Entrance Rock, awash at LW, and just E of a 3.6m patch located on the W side of the reef entrance. Once within the reef entrance, the fairway is deep.

10.38

A small wharf, 70m long, with depths of 3.9m is situated on

the S side of the peninsula charted 2.5 miles N of Entrance Rock. The main berthing facility, 290m long with a depth of 10m alongside, lies on the N side of the peninsula; there is poor protection from S and SE winds.

10.38

Donitsch Island, which has been connected to the mainland

of Yap by a causeway, has a conspicuous sewage treatment plant on it. The entire area is now charted as a peninsula, di- rectly E of Colonia.

10.38

A white dome-shaped building situated in Colonia is prom-

inent. A radio mast showing red obstruction lights lies about 2 miles NNW of Entrance Rock.

10.37

Aspect.—A visible wreck lies on the reef fringing the SW

side of the harbor, while a second exposed wreck lies about 1 mile NE of the reef entrance. A third wreck is charted 0.4 mile SW of the reef entrance.

10.37

Caution.—Caution is advised if sailing off the W side of

these islands, as Fish Aggregating Devices are moored up to 2.5 miles off this coast, and may best be seen on the chart.

Colonia (9°31'N., 138°08'E.)

World Port Index No. 56630 10.38 Colonia, the principal settlement on Yap, lies on the

W side of Tamil Harbor, a natural harbor of irregular shape. Al- though the entrance channel is narrow, the harbor widens out somewhat within the entrance. 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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