Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
View from same place as right image above, looking directly down one strand of cascades. Note `a`a levees along edge of channeled strand. Three people, distorted by heat shimmer, give scale. Can you find them? 0620.
Public Domain.
