USGS 12323700 Mill Creek at Opportunity, 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 in cooperation with U.S. Environmental Protection Agency.
Leaving USGS: U.S. Coast Guard boating safety tips.
This station managed by the Helena Field Unit.

Available Parameters Available Period
  
2025-01-01  2026-03-07
2003-04-02  2026-03-07
2007-10-01  2026-03-07
2016-10-01  2022-11-02







 (7)
 
  -- or --

 

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

Temperature, water, degrees Celsius
Most recent instantaneous value: 4.2 03-07-2026   22:00 MST
Graph of Temperature, water, degrees Celsius

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Discharge, cubic feet per second
Most recent instantaneous value: Rat 03-07-2026   22:00 MST
Graph of Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Mar 8 based on 22 water years of record more
Most Recent
Instantaneous
Value Mar 8		 Min
(2023)		 25th
percen-
tile		 Mean Median 75th
percen-
tile		 Max
(2019)
-- unavailable -- 0.08 2.7 5.7 6.5 7.7 10.9

Gage height, feet
Most recent instantaneous value: 2.37 03-07-2026   22:00 MST
Graph of Gage height, feet

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