This shows a full satellite view of the Nile River. You can see the differences in the width of the river as it travels through the desert and at its end at the Mediterranean Sea. It is more difficult to track once the surrounding area gets full of life again, but based on the nearby lakes, you can locate the origins of the Blue and White Nile Rivers.
The Nile River set Egypt up to be one of the major and earliest ancient civilizations. The Nile watered crops, via irrigation, and the long course of the Nile served to transport goods and people in each direction of the longest river in the world.