In the Mbala district in Zambia, the Kalambo River forms the northern border of the country with Tanzania. Along the river is Kalambo Falls, a 725 foot (221 meters) high single-drop waterfall, making it the second-highest in Africa. Besides the stunning views, Kalambo Falls is an important archaeological site, with the earliest evidence of human habitation dating approximately 250,000 years ago until the present day. This makes Kalambo Falls one of the longest continuously inhabited areas in the world. From 1953 to 1963, archaeologist J.D. Clark made extensive excavations of…
