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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.
Important Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 1980-06-10 2005-09-20
Inorganics, Major, Metals Water-quality 1980-06-10 2004-08-25
Inorganics, Major, Non-metals Water-quality 1980-06-10 2004-08-25
Inorganics, Minor, Non-metals Water-quality 1980-06-10 2004-08-25
Inorganics, Minor, metals Water-quality 1980-06-10 2004-08-25
Nutrient Water-quality 1980-06-10 2004-08-25
Physical Daily Values, Unit Values, Water-quality 1939-05-01 2024-11-13
Sediment Water-quality 1980-06-10 2004-08-25
n/a Peak Measurements 1940-03-21 2024-03-11
n/a Site Visits 1960-03-24 2024-10-25
n/a USGS Annual Water Data Reports Site 2006-01-01 2023-01-01
Water Data for the Nation inventory

Monitoring location 12335500 is associated with a Stream in Powell County, Montana. Current conditions of Discharge and Gage height are available. Water data back to 1939 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
12335500 n/a
Site name
Nevada Cr ab reservoir, nr Helmville, MT n/a
Site type
Stream
ST
DMS latitude 464640.00 n/a
DMS longitude 1124604.03 n/a
Decimal latitude 46.77777778 n/a
Decimal longitude -112.767786 n/a
Latitude-longitude method
Interpolated from Digital MAP. N
Latitude-longitude accuracy
Accurate to + or - .1 sec (Differentially-Corrected GPS). 1
Latitude-longitude datum
North American Datum of 1983 NAD83
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Montana 30
State
Montana 30
County
Powell County 077
Country US n/a
Land net location description SWNWSWS20 T12N R09W P n/a
Name of location map NEVADA LAKE n/a
Scale of location map n/a
Altitude of Gage/land surface 4640 feet n/a
Method altitude determined Interpolated from topographic map. M
Altitude accuracy 1 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
17010203
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site NNNNYNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried n/a
Drainage area
119 square miles n/a
Contributing drainage area n/a
Time Zone abbreviation MST n/a
Site honors Daylight Saving Time
Y n/a
Data reliability
n/a
Data-other GW files NYNNNNNN n/a
National aquifer n/a
Local aquifer n/a
Local aquifer type
n/a
Well depth n/a
Hole depth
n/a
Source of depth data n/a
Project number n/a

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Montana Department of Natural Resources and Conservation
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USGS - Cooperative Matching Funds