Then I noticed these aspens leaves and snow at my neighbor 's cabin .

于是我注意到在我邻近的小屋傍边的山杨叶片上的积雪。

Quaking aspens like these in the elk mountains of western colorado , whose leaves tremble in the slightest wind , are common across north america .

上面图中的是西部科罗拉多州的埃尔克山脉（elkmountains）的颤杨树，它的叶子在微风中颤抖，这种树木通常横穿了北美各地。