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.
Flooding of Prickly Pear Creek at East Helena, Montana, May 22, 1981. View is downstream (north) from U.S. Highway 12 crossing (p. 11, Parrett and others, 1982).
Public Domain.
