Where people go, they leave their trash. Since the Turkana Basin has been home to people for millions of years, there’s a lot of trash for archaeologists to pick up. The classic image of archaeology is the studious excavator sweating with trowel in hand in a meter-by-meter square trying to figure out how a piece of broken crockery goes back together, long after the person who made it and used it tossed it into the trash heap. We’ll get there.
But before the squares can be marked off and the holes dug to find precious ancient junk, you need to know where to dig, and to figure out where to dig, you need to do a lot of walking. If you have a mining bent, this is called “prospecting” and if you have an archaeological bent, this is called “surveying.”