An evacuation order for Bluff, Utah, was lifted as of Monday, October 26, 2026, following the monitoring of river levels in San Juan County. The decision follows observations of the San Juan River near Bluff, where the U.S. Geological Survey maintains a monitoring station to track water data.
River Monitoring Details
The monitoring of the San Juan River near Bluff is conducted by the U.S. Geological Survey (USGS) at location number 09379500. This specific monitoring site is situated in San Juan County, Utah, and provides critical data regarding the river's behavior within the Goosenecks-San Juan River hydrologic unit.
Geographic and Technical Data
The USGS monitoring site is located at a latitude of 37.1506777777778 and a longitude of -109.866688888889. The altitude of the gage/land surface at this location is 4046.22 feet, with an altitude accuracy of 0.21 feet. The vertical datum used for this location is the North American Vertical Datum of 1988 (NAVD88).
Drainage Basin Information
The drainage area for the river system associated with this monitoring location covers 23,000 square miles. The site falls under drainage basin code 09 and is part of the larger hydrologic unit 140802050406.
USGS Data Services
The U.S. Geological Survey provides various data types for this location, including daily mean data and annual statistics. While the monitoring station is currently undergoing technical updates to its beta features, it remains a primary source for water data in the San Juan River area.
