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Rattlesnake at Sawmill Gulch (MTVOLWQM_WQX-RAT_SAW) site data in the Water Quality Portal

Data Provider: STORET (Learn more about Water Quality Portal Data Providers)

This river/stream site, maintained by the Montana Volunteer Water Quality Monitoring (identifier MTVOLWQM_WQX), has the name "Rattlesnake at Sawmill Gulch" and has the identifier MTVOLWQM_WQX-RAT_SAW. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)17010204.

This site is located in Missoula County County, Montana at 46.9231640000 degrees latitude and -113.9610140000 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "MTVOLWQM_WQX-RAT_SAW" into the "Site ID" box under Site Parameters

What other monitoring locations are upstream or downstream from this one?

Upstream and downstream locations

This map shows all Water Quality Portal stations that are 10 miles upstream (dashed dark blue) and 10 miles downstream (solid light blue) of this monitoring location (indicated by the large blue circle). The upstream and downstream functionality is provided by the Network Linked Data Index.

Leaflet USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System, National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National Transportation Dataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line data; USFS Road data; Natural Earth Data; U.S. Department of State HIU; NOAA National Centers for Environmental Information. Data refreshed February, 2025.

When were data collected at this location?

Periods of record for data characteristic groups

For a more detailed breakdown of data, go to the Monitoring Report at the EPA How's My Waterway Application

Characteristic Group Date Range*
Inorganics, Major, Non-metals 2020 - 2024
Nutrient 2020 - 2024
Physical 2020 - 2024
*Date ranges may contain gap years

What other information is available for this location?

Detailed Metadata

For the definitions of the metadata elements, please go to the Water Quality Portal user guide

Location Metadata Value
OrganizationIdentifier MTVOLWQM_WQX
OrganizationFormalName Montana Volunteer Water Quality Monitoring
MonitoringLocationIdentifier MTVOLWQM_WQX-RAT_SAW
MonitoringLocationName Rattlesnake at Sawmill Gulch
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText Rattlesnake at Sawmill Gulch
HUCEightDigitCode 17010204
LatitudeMeasure 46.9231640000
LongitudeMeasure -113.9610140000
HorizontalCollectionMethodName GPS Code (Pseudo Range) Standard Position (SA Off)
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 30
CountyCode 063
ProviderName STORET