Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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-SHEN_MA12

Mill Prong (11NPSWRD_WQX-SHEN_MA12) 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 National Park Service Water Resources Division (identifier 11NPSWRD_WQX), has the name "Mill Prong" and has the identifier 11NPSWRD_WQX-SHEN_MA12. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)02080103.

This site is located in Madison County County, Virginia at 38.4920200000 degrees latitude and -78.4206500000 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available. This site is at an elevation of 2620 ft No vertical 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-SHEN_MA12" 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*
Inorganics, Major, Metals 1987 - 2021
Inorganics, Major, Non-metals 1987 - 2021
Not Assigned 2021 - 2021
Nutrient 1987 - 2021
Physical 1987 - 2021
*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-SHEN_MA12
MonitoringLocationName Mill Prong
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText Mill Prong fork of Rapidan River above Camp Hoover This is one of two tributaries of the Rapidan River above Camp Hoover in Shenandoah National Park. Camp Hoover is located between the two tributaries just above where they converge to form the Rapidan River. Mill Prong (MA12) is the northern tributary. Laurel Prong (MA13) is the southern tributary. Tag #: 712 Tag tree: 16" DBH birch on left bank, looking downstream.
HUCEightDigitCode 02080103
LatitudeMeasure 38.4920200000
LongitudeMeasure -78.4206500000
SourceMapScaleNumeric 24000
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 2620
VerticalMeasure/MeasureUnitCode ft
VerticalCollectionMethodName Topographic Map Interpolation
VerticalCoordinateReferenceSystemDatumName SEALV
CountryCode US
StateCode 51
CountyCode 113
ProviderName STORET