The narrow spikes outward from the somewhat wider canals are scars from cypress logging that occurred during the 1800s and early 1900s in what is now known as the Manchac Wildlife Management Area of Louisiana. (Google Earth)
From ancient civilization to present time, the surface of the earth has been greatly modified by humans.
Some of the largest and most prominent of these alterations can be viewed from space using either cameras aboard the International Space Station or satellites.
The 40 images above show many of these features, ranging from logging scars and deforestation to mining pits and artificial islands. Of course, some of these modifications to the earth's landscape will last much longer than others.
MORE ON WEATHER: Greatest Major Impact Craters on Earth