Guajira Peninsula and Magdalena River, Colombia10.9N 74.8W
Sediments flank the coastline of the Guajira Peninsula, upper right corner, in northern Colombia and northwestern Venezuela in the Caribbean sea. It is the northernmost peninsula in South America and has an area of 25,000 km² extending from the Manaure Bay (Colombia) in the Caribbean sea to the Calabazo Ensenada in the Gulf of Venezuela (Venezuela).
Most of the territory is part of Colombia, making part of the Department of La Guajira, while the remaining strip pertains to the Venezuelan State of Zulia. The northern most part of the peninsula is called Punta Gallinas, which is also considered the northernmost part of mainland South America.
Moving southwest down the coast, the Magdalena River, also called the Yuma River, can be seen spilling sediments into the Caribbean Sea at the city of Barranquilla. It is the principal river of Colombia, flowing northward about 1,540 kilometres (950 miles) through the western half of the country.
It is navigable through much of its lower reaches, in spite of the shifting sand bars at the mouth of its delta, as far as Honda, at the downstream base of its rapids. It flows through the Magdalena River Valley, visible towards the center of the image.