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


Page Loading - Please Wait...

Click to hideNews Bulletins
! This page will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline.

USGS 06130000 Flatwillow Creek near Mosby MT

  Stream Site

DESCRIPTION:
Latitude 46°55'43.18",   Longitude 107°55'58.23"   NAD83
Petroleum County, Montana, Hydrologic Unit 10040203
Drainage area: 1,855 square miles
Datum of gage: 2,563 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2012-10-01  2026-01-23  
 Daily Data
    Discharge, cubic feet per second  1964-03-01  2026-01-21  4690 
 Daily Statistics 
    Discharge, cubic feet per second  1964-03-01  2025-11-25 4633 
 Monthly Statistics 
    Discharge, cubic feet per second  1964-03  2025-11  
 Annual Statistics 
    Discharge, cubic feet per second  1964  2026  
 Peak streamflow 2013-06-05  2025-02-27  10 
 Field measurements 1987-10-21  2025-11-26  115 
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 1964-03-11  2013-09-03  94 
 Water-Year Summary 2013  2024  10 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Montana Water Science Center
Email questions about this site to Montana Water Science Center Water-Data Inquiries