http://www.anomalist.com/reports/mokele.html
Supposedly, a mokele mbembe was killed in Africa a few decades ago.
http://www.mokelembembe.com/
Here's the website dedicated to mokele mbembe
Mokele mbembe is described by African Pygmies as what is essentially a living dinosaur. I remember seeing a segment on it during a TLC crptozoology show. A few anthropologists showed the tribesmen pictures of various animals, both living, extinct, and ficitonal. Some of the men talked quitely during the showing of most pictures, but when a drawing of a brontosaurus was shown, they all started shouting "mokele mbembe" in excited, nervous voices.
I'm not sure what they have seen, but if anything were to survive long past the accepted evolutionary period during which it is thought to have existed, the jungles of central Africa are a good candidate for a location.