N4 road (Senegal) need to be nearly 1000 metres long with 500 metres long access roads through the riverside swamps. An alternative (smaller) route is the N5 via Bignona and Banjul, crossing the Gambia river by ferry at Banjul and rejoining the N4 just south of Kaolack. N4 road (Senegal) The N4 road is the Trans-Gambia Highway extension in Senegal, which is the main connection between the Casamance area in the south and the capital Dakar. The road runs north from Ziguinchor in Casamance to Bignona, crossing the Casamance River. It runs north-east to Bounkiling and then north to traverse the country of
Geology of the Central African Republic Southern Hemisphere as part of the supercontinents Gondwana and Pangaea. Many aspects of Central African Republic’s geologic history remain unknown. Along with the Brazilian state of Bahia, CAR is the only country known to host carbonados (black diamond aggregates), which some researchers have suggested may be connected to a Precambrian meteorite impact that could also have generated the Bangui magnetic anomaly. Up to 60% of bedrock beneath the Central African Republic dates to the Precambrian. Much of the country is situated in the Archean Congo Craton. The North Equatorial Fold Belt, Pan-African granulites and greenstone belts are found in the