It appeared about 4 million years ago, and has been found from Florida to the Hagerman Fossil Beds in Idaho.
它出现在大约 400 万年前,从佛罗里达州到爱达荷州的哈格曼化石床均有发现。
Aerial America 《俯瞰美国》
These are just some of the hundreds of waterfalls known as Thousand Springs Falls outside of Hagerman, where water from the Big Lost River finally appears again, cascading down steep bluffs to join the Snake River below.