The monitoring network within this area

Hydrionis holds 497 values from 5 gauges within it. Discharge is a property of a gauge and its reach, not of this drainage area, so this page reports the network and its records rather than a single figure.

5
Gauges
497
Values held
1899–2025
Record spans
Gauges within the Youghiogheny huc8 subbasin
5 monitoring points, positioned as the publisher records them.
Gauges within the Youghiogheny huc8 subbasinYOUGHIOGHENY RIVER AT FRIENDSVILLE, MD, Casselman River at Markleton, PA, Laurel Hill Creek at Ursina, PA, Youghiogheny River at Connellsville, PA, Youghiogheny River at Sutersville, PAYOUGHIOGHENY RIVER AT FRIENDSVILLE, MDCasselman River at Markleton, PALaurel Hill Creek at Ursina, PAYoughiogheny River at Connellsville, PAYoughiogheny River at Sutersville, PA

Every gauge Hydrionis holds within this area

Gauges within the Youghiogheny and what each holds
GaugeMeasuresValuesRecord
Laurel Hill Creek at Ursina, PAmean river flow1071919–2025
Casselman River at Markleton, PAmean river flow1031921–2023
Youghiogheny River at Connellsville, PAmean river flow1011925–2025
Youghiogheny River at Sutersville, PAmean river flow951921–2024
YOUGHIOGHENY RIVER AT FRIENDSVILLE, MDmean river flow911899–2025

How these gauges were attached to this water

Assigned by the publisher to a numbered basin Every gauge here is assigned to this drainage area by its own publisher, which issues the area an official code — 05020006. A drainage area is not a river: it contains the tributaries as well as the main channel, and a gauge in it may be on any of them.

What each gauge’s link to this water rests on
GaugeEvidenceEstablished
Laurel Hill Creek at Ursina, PAStated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/42026-08-26
Casselman River at Markleton, PAStated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/42026-08-26
Youghiogheny River at Connellsville, PAStated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/42026-08-26
Youghiogheny River at Sutersville, PAStated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/42026-08-26
YOUGHIOGHENY RIVER AT FRIENDSVILLE, MDStated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/42026-08-26

What this record holds

Hydrionis decides which waters get a page, and which of those are offered to search, from what is actually held rather than from how the page reads. Five signals are counted; this record has 2 of them, which makes it a profile, not indexed.

Information-gain signals held for this water body
SignalHeldCounts
Gauges holding a real record5yes, 3 or more
Years spanned127yes, 20 or more
Values held497no
Distinct measurements1no
Publishers measuring it1no
Official identifiers1recorded, not counted

Where these figures come from

Spatially aggregatedHigh confidence2025

Source: USGSNational Water Information System, USGS site 03080000, parameter 00060, annual mean statistics. Licence: Open.

Method: Annual mean discharge as published by the USGS statistics service, computed by USGS from its own quality-controlled daily record. Hydrionis converts cubic feet per second to cubic metres per second and records the publisher unit alongside; it does not recompute the mean.

Data from the U.S. Geological Survey National Water Information System, a work of the United States government and therefore in the public domain.

Retrieved 24 August 2026.