San Juan River at Mexican Hat

Welcome to This site is designed as a one stop source for viewing San Juan River flow and diversion data between Navajo Reservoir, NM and Mexican Hat, UT. All real-time and historic river flow data come from the USGS web site.  All reservoir data comes from the USBR.  This data is retrieved daily and stored in our online database.  All data on this site should be considered provisional unless otherwise noted.

During the irrigation season, all real-time diversion data are uploaded via satellite every hour and made available to this site by the USGS. We automatically retrieve the data every hour. Equipment used in collection and telemetry of diversion data are maintained by various entities not associated with the USGS.

Information on Site Use
Current San Juan and Animas River flows plotted on a common axis may be viewed by clicking on the "Current" button on the navigation bar at the top of this page.  Real-Time flows are also availalble on this same page.  A user defined plot of historical gage data is available via the "Historical" button.  Navajo and Lake Powell reservoir data are available via the "Reservoirs " button.   Diversion data for NIIP,  Fruitland and Hogback canals are available by clicking the "Diversions" button.

Special Thanks
We would like to express our thanks to both the US Geological Survey and the US Bureau of Reclamation for making the hydrologic data used on this web site available to the public.

For questions or problems with this site please contact us at:

Keller-Bliesner Engineering, LLC
78 East Center
Logan, UT 84321