1681. Ourti (18.95N, 18.56E) Borkou-Ennedi-Tibesti, Wadi 1682. Ousadou (13.37N, 15.23E) Chari-Baguirmi, Sand Area 1683. Ouseng Teina (9.1N, 15.83E) Tandjile, Populated Place 1684. Ousili (10.2N, 17.8E) Moyen-Chari, Intermittent Stream 1685. Ouskay (13.43N, 15.83E) Lac, Populated Place 1686. Ousman (12.63N, 14.8E) Chari-Baguirmi, Intermittent Stream 1687. Ousmanari (11.78N, 15.27E) Chari-Baguirmi, Populated Place 1688. Ousnanari (11.78N, 15.27E) Chari-Baguirmi, Populated Place 1689. Ouso (13.93N, 15.55E) Kanem, Populated Place 1690. Ousounga (14.22N, 16.43E) Kanem, Well 1691. Oussen Teina (9.1N, 15.83E) Tandjile, Populated Place 1692. Oussili (10.2N, 17.8E) Moyen-Chari, Intermittent Stream 1693. Oussou (11.43N, 17.97E) Guera, Wadi 1694. Oustani (11.95N, 22.02E) Ouaddai, Populated Place 1695. Oustani (12.43N, 22.35E) Ouaddai, Populated Place 1696. Oustani (12.58N, 22.28E) Ouaddai, Populated Place 1697. Oustani (12.65N, 22.22E) Ouaddai, Populated Place 1698. Outach (13.6N, 20.13E) Batha, Populated Place 1699. Outchimi (12.08N, 20.72E) Ouaddai, Rocks 1700. Outia (9.18N, 14.37E) Mayo-Kebbi, Populated Place 1701. Outougou (10.97N, 17.9E) Guera, Populated Place 1702. Outougou (10.98N, 17.9E) Guera, Mountain 1703. Outoukalia (14.08N, 15.18E) Kanem, Populated Place 1704. Outoukoulou (14.05N, 15.22E) Kanem, Populated Place 1705. Outroula (12.08N, 15.13E) Chari-Baguirmi, Intermittent Stream 1706. Outtougou (10.97N, 17.9E) Guera, Populated Place 1707. Ouyde (14.27N, 14.12E) Kanem, Blowout(s) 1708. Ouye (7.95N, 15.43E) Logone Oriental, Intermittent Stream 1709. Ouyouma (14.3N, 16.82E) Kanem, Well 1710. Ouyounga (14.58N, 16.03E) Kanem, Intermittent Lake 1711. Ouyounga (14.58N, 17.35E) Kanem, Intermittent Lake 1712. Ouyounga (14.97N, 17.18E) Kanem, Well 1713. Ouyounga (15.15N, 17.13E) Kanem, Well 1714. Ouyounga (15.62N, 16.08E) Kanem, Well 1715. Ouyounga (14.22N, 16.02E) Kanem, Blowout(s) 1716. Ouyoungay (14.37N, 16.28E) Kanem, Well 1717. Ouzine (12.3N, 20.93E) Ouaddai, Populated Place 1718. Ouzounga (14.22N, 16.43E) Kanem, Well 1719. Oyarguchi (16.42N, 21.67E) Borkou-Ennedi-Tibesti, Well 1720. Oye Yeska (18.58N, 19.55E) Borkou-Ennedi-Tibesti, Well | 1721. Oyenga (14.37N, 15.75E) Kanem, Blowout(s) 1722. Oygo (15.9N, 22.27E) Biltine, Populated Place 1723. Oyimbou (13.7N, 15E) Lac, Populated Place 1724. Oyo (12.2N, 18.73E) Guera, Populated Place 1725. Oyo (16.63N, 17.17E) Borkou-Ennedi-Tibesti, Well 1726. Oyorguchi (16.42N, 21.67E) Borkou-Ennedi-Tibesti, Well 1727. Oyoudi (20.33N, 19E) Borkou-Ennedi-Tibesti, Wadi 1728. Oyoudinga (20.97N, 18.08E) Borkou-Ennedi-Tibesti, Wadi 1729. Oyoudinga (15.15N, 16.27E) Kanem, Well 1730. Oyoudinga (15.38N, 16.42E) Kanem, Well 1731. Oyoudinga Senousna (15.18N, 16.22E) Kanem, Well 1732. Oyoumbou (14.13N, 15.38E) Kanem, Populated Place 1733. Oyoume (17.22N, 17.23E) Borkou-Ennedi-Tibesti, Well 1734. Oyounga (14.9N, 16.6E) Kanem, Sabkha(s) 1735. Ozi (21.07N, 18.68E) Borkou-Ennedi-Tibesti, Populated Place 1736. Ozu (21.84N, 17.43E) Borkou-Ennedi-Tibesti, Populated Place |