We spent our second night in Grand Canyon National Park along the Colorado River at a campsite called Above Little Colorado River. As its name implies, the campsite was located just upriver from the Little Colorado River. The Little Colorado River has a high alkaline and mineral content which gives the river a beautiful turquoise hue. This can readily be seen at the confluence where the Colorado River and the Little Colorado River meet:
It was fascinating watching the color of the two rivers meet and blend together as the color line between the two constantly changed and moved.