Just 70 miles downstream is the world's largest freshwater delta, the Peace-Athabasca Delta, the only one at the juncture of all four migratory flyways.
河流下游70英哩处 是世上最大的淡水三角洲 和平－阿萨帕斯卡尔三角洲 它是四条候鸟迁徙路线唯一交会点