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New WQX 3.0 profiles are available at waterqualitydata.us/beta/. These profiles will contain recent USGS data added since March 11, 2024, which marks the beginning of limited accessibility for USGS data. Read more about the 3.0 profiles and associated changes here. This user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STORET >  11NPSWRD_WQX >  11NPSWRD_WQX-YELL_WU004.0M

West Entrance-Snowmelt Runoff (11NPSWRD_WQX-YELL_WU004.0M) site data in the Water Quality Portal

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

This land runoff site, maintained by the National Park Service Water Resources Division (identifier 11NPSWRD_WQX), has the name "West Entrance-Snowmelt Runoff" and has the identifier 11NPSWRD_WQX-YELL_WU004.0M. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)10020007.

This site is located in Gallatin County County, Montana at 44.6571375700 degrees latitude and -111.0920615400 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 "11NPSWRD_WQX-YELL_WU004.0M" 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.

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*
Organics, Other 2003 - 2004
Physical 2003 - 2004
*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 11NPSWRD_WQX
OrganizationFormalName National Park Service Water Resources Division
MonitoringLocationIdentifier 11NPSWRD_WQX-YELL_WU004.0M
MonitoringLocationName West Entrance-Snowmelt Runoff
MonitoringLocationTypeName Land Runoff
MonitoringLocationDescriptionText This station is located adjacent to the roadway near the west entrance gate in Yellowstone National Park. The water collected from this station is a direct result of snowmelt from the roadway which flows from the road down a stormwater runoff drain. This drain is found directly east of the west entrance station in the vicinity of the pullout on the south side of the road. Soils near the West Entrance sample site are comprised of surficial glaciofluvial alluvium deposits which consist primarily of sands and gravels and a slope of less than 5 percent (Rodman et al. 1996). Consequently, flowing water near the West Entrance site was absent during both sampling periods. This resulted in snowmelt water being collected from pooled areas on or adjacent to the roadway. In 2003 the sample location at West Entrance was located approximately 5 meters from the main roadway within a group of pine trees. In 2004 the sample location was relocated to an area on the road surface near the West Entrance gate where water accumulated adjacent to a berm of snow. Distance between the 2003 and 2004 snowmelt sites was approximately 20 meters.
HUCEightDigitCode 10020007
LatitudeMeasure 44.6571375700
LongitudeMeasure -111.0920615400
HorizontalCollectionMethodName GPS Code (Pseudo Range) Standard Position (SA Off)
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 30
CountyCode 031
ProviderName STORET