Recent geologic evidence indicates that contrary to what had been believed, substantial areas along the coast were free of ice as early as 16,000 years ago.
最近的地质证据表明，早在16,000年前，沿海岸的大部分地区就没有冰了，这与人们过去的看法相反。
2
Along the east coast of the United States, the southernmost advance of this ice is recorded by the enormous sand and drift deposits of the terminal moraines that form Long Island and Cape Cod.
沿着美国东海岸，最南边的冰川运动被大量的沙子和终碛石的漂流沉积物（形成了长岛和科德角）所记录下来。
3
Radiocarbon dating of fossils taken from caves on islands along southeastern Alaska's coast suggest that at least a portion of the area was remaining ice-free during the last ice age.