the line of deepest soundings of the main navigable channel of that river, from the intersection of the said line with the median line of the River Mekrou until the point situated at co-ordinates 11° 52' 29" latitude North and 3° 25' 34" longitude East; from that point, the line of deepest soundings of the left navigable channel until the point located at co-ordinates 11° 51' 55" latitude North and 3° 27' 41" longitude East, where the boundary deviates from this channel and passes to the left of the island of Kata Goungou, subsequently rejoining the main navigable channel at the point located at co-ordinates 11° 51' 41" latitude North and 3° 28' 53" longitude East; from this latter point, the line of deepest soundings of the main navigable channel of the river as far as the boundary of the Parties with Nigeria;
- خط السبر الأعمق لقناة الملاحة الرئيسية لذلك النهر، من تقاطع الخط المذكور مع الخط الوسط لنهر ميكرو، إلى النقطة الواقعة عند الإحداثيات ”11° 52' 29 شمال خط العرض و 3° 25' 34“ شرق خط الطول؛