Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins
! This page is undergoing modernization with expected decommissioning as key features are added to the modernized pages.
Learn more about our modernization plans to find out which options will suit you best. Next Generation Monitoring Location Page is available now.
A beta version of the My Favorites page is available in WDFN. Try it out and tell us what you think at wdfn@usgs.gov

USGS 06085800 Sun River at Simms MT

PROVISIONAL DATA SUBJECT TO REVISION

Click to hidestation-specific text
Flood Tracking - Stage Flood Tracking - Discharge Gage-height Corrections Base Rating Shifted Rating
(About shift-adjusted ratings).
Station operated by the USGS Wyoming-Montana Water Science Center as part of the Federal Priority Streamgages network and in cooperation with Montana Fish, Wildlife, and Parks and the USGS Cooperative Matching Funds program.

The elevation of zero gage height has been determined to be 3,551.08 feet above NAVD 1988. To obtain stream water-surface elevation values in NAVD 1988 add 3,551.08 feet to gage height values.


Leaving USGS: National Weather Service forecast might be available. U.S. Coast Guard boating safety tips.
This station managed by the Helena Field Unit.

Available Parameters Available Period
  
2010-04-01  2026-02-23
1997-04-03  2008-09-30
2007-10-01  2026-02-23
2007-10-01  2026-02-23







 (7)
 
  -- or --

 

 
Summary of all available data for this site
Instantaneous-data availability statement

Temperature, water, degrees Celsius
Most recent instantaneous value: -0.1 02-23-2026   17:30 MST
Graph of

Add up to 2 more sites and replot for "Temperature, water, degrees Celsius"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Discharge, cubic feet per second
Most recent instantaneous value: Ice 02-23-2026   17:30 MST
Graph of

Add up to 2 more sites and replot for "Discharge, cubic feet per second"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |

Daily discharge, cubic feet per second -- statistics for Feb 23 based on 38 water years of record more
Most Recent
Instantaneous
Value Feb 23		 Min
(2022)		 25th
percen-
tile		 Median Mean 75th
percen-
tile		 Max
(2015)
-- unavailable -- 74.9 128 188 193 252 320

Discharge, cubic feet per second, [Instantaneous Data Archive]
 
-- Data temporarily unavailable for the time period specified --

Gage height, feet
Most recent instantaneous value: 3.10 02-23-2026   17:30 MST
Graph of

Add up to 2 more sites and replot for "Gage height, feet"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |