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 >  GPC5_WQX >  GPC5_WQX-S_HRC_1

Hollow Rock Creek Below Hwy 61 (GPC5_WQX-S_HRC_1) 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 Grand Portage Reservation (identifier GPC5_WQX), has the name "Hollow Rock Creek Below Hwy 61" and has the identifier GPC5_WQX-S_HRC_1. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)04010101.

This site is located in Cook County County, Minnesota at 47.9174100000 degrees latitude and -89.7424000000 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 "GPC5_WQX-S_HRC_1" 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*
Biological, Algae, Phytoplankton 2022 - 2024
Biological, Counts 2012 - 2024
Information 2022 - 2024
Nutrient 2008 - 2024
Organics, Other 2012 - 2024
Physical 2008 - 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 GPC5_WQX
OrganizationFormalName Grand Portage Reservation
MonitoringLocationIdentifier GPC5_WQX-S_HRC_1
MonitoringLocationName Hollow Rock Creek Below Hwy 61
MonitoringLocationTypeName River/Stream
HUCEightDigitCode 04010101
LatitudeMeasure 47.9174100000
LongitudeMeasure -89.7424000000
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 27
CountyCode 031
ProviderName STORET