It is important to understand WHERE the Biblical places are. But, it is just as important to understand HOW the lands of the Bible operate. The land of Israel is a very small area, but has a wide variety of geographical regions. And, what happens in one portion of the land can have dramatic affects in other parts of the land. Earlier today, I saw a video posted to YouTube a few days ago of a flash flood in the Wilderness of Zin. As you can tell from the video, the immediate area is completely dry. But, water from a nearby storm comes barreling down the wadi with fascinating results.
Enjoy.