OAK IS.
OCRACOKE
OLD CAPE HENRY
OLD FIELD POINT
OLD POINT COMFORT
ORIENT POINT
ORIENT POINT
OROTE POINT
OSWEGO HARBOR W. PIERHEAD
OUTER IS.
OWLS HEAD

NA: OAK IS.
DT: NC SEACOAST - FIFTH DISTRICT
CT: CAPE HATTERAS TO LITTLE RIVER INLET
IN: 810
LL: 33 53 36N 78 02 06W
CH: FL (4) W 10S 0.1S FL 0.9S EC 0.1S FL 0.9S EC 0.1S FL 0.9S EC 0.1S FL 6.9S EC
  
HT: 169
RG: 24
DM: CYLINDRICAL TOWER, TOP THIRD BLACK, MIDDLE THIRD WHITE, LOWER THIRD GRAY. 155
RM: SHOWS REDUCED INTENSITY BETWEEN 190D AND 250D. EM. LIGHT.

NA: OCRACOKE
DT: NC SEACOAST - FIFTH DISTRICT
CT: CAPE HATTERAS TO LITTLE RIVER INLET
IN: 660
LL: 35 06 32N 75 59 10W
CH: F W
HT: 75
RG: 15
DM: WHITE TOWER.
RM:

NA: OLD CAPE HENRY
DT:
CT:
IN: 9999
LL: 36 55 33N 76 00 29W
CH:
  
HT: 92
RG:
DM: OCTAGONAL STONE TOWER
RM: ABANDONED IN 1881

NA: OLD FIELD POINT
DT: CT AND NY LONG IS. SOUND - FIRST DISTRICT
CT: LONG IS. SOUND (WESTERN PART)
IN: 21275
LL: 40 58 37N 73 07 07W
CH: AL R G 24S R FL 12S EC G FL 12S EC
HT: 74
RG: 14
DM: BLACK TOWER ON GRANITE HOUSE.
RM:

NA: OLD POINT COMFORT
DT: VA CHESAPEAKE BAY - FIFTH DISTRICT
CT: HAMPTON ROADS
IN: 9380
LL: 37 00 06N 76 18 23W
CH: FL (2) R12S (W SECTOR) 2S FL 2S EC 2S FL 6S EC
  
HT: 54
RG: W16 R14
DM: WHITE TOWER.
RM: WHITE FROM 265D TO 038D.

NA: ORIENT POINT
DT: CT AND NY LONG IS. SOUND - FIRST DISTRICT
CT: LONG IS. SOUND (EASTERN PART)
IN: 21095 27680
LL: 41 09 48N 72 13 24W
CH: FL W 5S
HT: 64
RG: 17
DM: BLACK CONICAL TOWER WITH WHITE BAND IN CENTER.
RM: EM. LIGHT OF REDUCED INTENSITY WHEN MAIN LIGHT IS EXTINGUISHED. HORN: 2 BLASTS EV 30S (2S BL-2S SI-2S BL-24S SI).

NA: ORIENT POINT
DT: NY - FIRST DISTRICT
CT: BLOCK IS. SOUND AND GARDINERS BAY
IN: 27680 21095
LL: 41 09 48N 72 13 24W
CH: FL W 5S
HT: 64
RG: 17
DM: BLACK CONICAL TOWER WITH WHITE BAND IN CENTER.
RM: EM. LIGHT OF REDUCED INTENSITY WHEN MAIN LIGHT IS EXTINGUISHED. HORN: 2 BLASTS EV 30S (2S BL-2S SI-2S BL-24S SI).

NA: OROTE POINT
DT: PI - FOURTEENTH DISTRICT
CT: IS. OF GUAM (MARIANAS)
IN: 30685
LL: 13 26 47N 144 37 11E
CH: FL W 5S
HT: 226
RG: 15
DM: NB ON CONCRETE TOWER. 23
RM: OBSCURED FROM 227D TO 358D.

NA: OSWEGO HARBOR W. PIERHEAD
DT: LAKE ONTARIO
CT: OSWEGO HARBOR
IN: 2080
LL: 43 28 24N 76 31 00W
CH: AL WR 10S 0.1S W. FL 4.9S EC 0.1S W. FL 4.9S EC
HT: 57 17
RG: 12
DM: WHITE SQUARE TOWER ON CORNER OF SQUARE BUILDING.
RM: STANDBY LIGHT OC R 4S OF REDUCED INTENSITY. HORN: 1 BLAST EV 30S (3S BL). OPERATES FROM APR. 1 TO OCT 15.

NA: OUTER IS.
DT: LAKE SUPERIOR
CT: APOSTLE IS.
IN: 15255
LL: 47 04 36N 90 25 00W
CH: FL W 10S  
HT: 130 40
RG: 15
DM: WHITE CONCIAL TOWER WITH DWELLING ATTACHED. 80
RM:

NA: OWLS HEAD
DT: ME - FIRST DISTRICT
CT: PENOBSCOT BAY AND APPROACHES
IN: 4105
LL: 44 05 32N 69 02 38W
CH: F W
HT: 100
RG: 16
DM: WHITE TOWER.
RM: OBSCURED FROM 324D TO 354D BY MONROE IS.. LIGHTED THROUGHOUT 24 HOURS. EM. LIGHT OF REDUCED INTENSITY WHEN MAIN LIGHT IS EXTINGUISHED. HORN: 2 BLAST EV 20S (2S BL-2S SI-2S BL-14S SI).