This is the Yukon River Delta. It is a river dominated delta where the Yukon and the Kuskokwim rivers meet and empty into the Bering Sea in Alaska. It is one of the largest deltas in the world (129,500 sq km) and 25,000 people live on the delta. A lot of the delta is a wildlife refuge of wetlands and tundra with many ponds and meandering rivers. Because of this, there are many species of water birds living on the delta. The delta has many smaller meandering channels that have split off from the Yukon and the Kuskokwim.