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.
Two types of irrigation systems in the northern village: (a) the locks and concrete of the modern irrigation system, and (b) the traditional irrigation systems with water flow directed by a diversion constructed from rocks and organic material above and an earthen channel below (Photos: A. Teller).
