One thing about the desert is that it is dry. Dry means that metal and other objects are essentially eternal. Who knows how long this particular can has lain here out on the desert pavement? Sometimes if we are not careful, we will ignore the beauty around us and focus on what we consider to be trash. Maybe sometimes we should realize that even man-made trash can become beautiful over time. If this can were a few years older and made of clay, it would be protected by strict national laws about artifacts.