The monitoring network within this area

Hydrionis holds 1,255 values from 4 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.

4

Gauges

1,255

Values held

1890–2026

Record spans

Gauges within the Lower Bear-Malad huc8 subbasin

4 monitoring points, positioned as the publisher records them.

Flood peaks, as measured

This gauge's flood record, as measured. Unlike a daily mean it is the discharge at the moment the river was highest, which is the figure flood frequency analysis is built on.

Largest measured flow of each year at BEAR RIVER NEAR COLLINSTON, UT

The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1890–2023.

Show relevant events (1 event)Shading marks when something was recorded, not what caused the line.

Published by the gauge's own operator from its sub-daily record; Hydrionis stores the figure rather than recomputing it. A year the gauge did not cover produces no value rather than a low one, and the gaps are stated below the chart. A peak is a property of this gauge and its reach: a larger flood upstream or downstream of it is not in this series.

What the shaded periods are (1 event)

A shaded period marks when something was recorded, not what caused the shape of the line. Where the two coincide, they coincided.

Documented record — A documented event, compiled from cited sources after it happened. The dates are as good as the record, which for older events can mean the month rather than the day.

Event	Type	Period	Standing	Authority
Hurricane Katrina water and sanitation collapse	Flood	2005-08-29 – 2005-09-30	Documented record	Compiled record

Not shown on this chart

The 1976 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
The 2022 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Yorkshire drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cantareira water crisis, São Paulo — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cape Town Day Zero — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
European drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.

View the data behind this chart

Underlying data
Period	BEAR RIVER NEAR COLLINSTON, UT (m³/s)
1890	233
1891	142
1892	177
1893	183
1894	220
1895	141
1896	210
1897	300
1898	151
1899	188
1900	107
1901	140
1902	94.6
1903	127
1904	190
1905	78.2
1906	200
1907	289
1908	155
1909	328
1910	221
1911	249
1912	181
1913	177
1915	73.9
1916	182
1917	231
1918	132
1919	109
1920	184
1921	191
1922	286
1923	172
1924	138
1925	121
1926	95.7
1936	206
1937	151
1938	156
1939	112
1940	102
1941	102
1942	110
1943	137
1945	176
1946	203
1948	110
1949	109
1950	192
1951	153
1952	199
1957	139
1958	108
1959	103
1960	107
1962	275
1963	110
1964	111
1965	110
1966	110
1967	141
1968	144
1969	170
1971	209
1972	145
1973	113
1974	112
1975	190
1976	149
1978	107
1979	101
1980	236
1981	112
1983	240
1986	360
1989	105
1991	106
1995	121
1996	131
2014	97.7
2015	96.8
2016	98.3
2017	275
2018	128
2019	132
2020	158
2021	101
2022	118
2023	246

About this series

Everything below is a property of the data rather than a rating of it. There is deliberately no single confidence score: how much a gap matters depends on what you are about to do with the series, and only you know that.

Source	United States Geological Survey — National Water Information System · US Government work — public domain
How the values came to exist	Measured
Period held	1890–2023
Completeness	66.4% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	14 separate periods inside 1890–2023 hold no value. The longest runs from 1997 to 2013 — 17 years with no reading. They are drawn as breaks in the line and are never interpolated across.
Continuity	The record begins in 1890 and is not continuous from it: 134 years separate the first value from the last, and 66% of the years between them are held. The span is not the record.
Last read from the publisher	2026-10-01
Redistribution	Permitted by the upstream licences
Commercial reuse	Permitted by the upstream licences. No Hydrionis access tier can widen this.
Methodology	How this was produced

How much of the rain came back out

A discharge in cubic metres per second cannot be compared with anything: the larger number may only mean the larger catchment. Divided by the area draining to the gauge it becomes a depth of water over that land, which answers a question a reader already has — of the rain that fell here, how much came back out as river?

Water leaving the catchment above BEAR RIVER NEAR COLLINSTON, UT, as a depth

The year's flow spread over the land draining to this gauge, in millimetres — the same unit rainfall is measured in. 1903–2022.

Show relevant events (1 event)Shading marks when something was recorded, not what caused the line.

Computed by Hydrionis from the published annual mean flow and the catchment area the station's own publisher states. It is not a water balance: the difference between rainfall and runoff is not evaporation alone but also change in groundwater storage, water abstracted and taken elsewhere, and water imported by transfer schemes — which is why a catchment can yield more runoff than the rain that fell on it without anything being measured wrongly. A different area figure rescales every value here by the ratio between them.

What the shaded periods are (1 event)

A shaded period marks when something was recorded, not what caused the shape of the line. Where the two coincide, they coincided.

Documented record — A documented event, compiled from cited sources after it happened. The dates are as good as the record, which for older events can mean the month rather than the day.

Event	Type	Period	Standing	Authority
Hurricane Katrina water and sanitation collapse	Flood	2005-08-29 – 2005-09-30	Documented record	Compiled record

Not shown on this chart

The 1976 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
The 2022 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Yorkshire drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cantareira water crisis, São Paulo — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cape Town Day Zero — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
European drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.

View the data behind this chart

Underlying data
Period	BEAR RIVER NEAR COLLINSTON, UT (mm)
1903	68.0
1904	121
1906	109
1907	203
1908	101
1909	200
1910	115
1911	109
1912	128
1913	98.0
1914	138
1915	58.0
1916	101
1917	157
1918	88.0
1919	72.0
1920	99.0
1921	135
1922	154
1923	141
1924	82.0
1925	82.0
1926	67.0
1927	79.0
1928	67.0
1929	69.0
1930	50.0
1931	27.0
1932	62.0
1933	47.0
1934	23.0
1935	34.0
1936	68.0
1937	58.0
1938	65.0
1939	43.0
1940	34.0
1941	40.0
1942	53.0
1943	72.0
1944	48.0
1945	69.0
1946	88.0
1947	78.0
1948	83.0
1949	80.0
1950	138
1951	120
1952	118
1953	64.0
1954	37.0
1955	50.0
1956	63.0
1957	79.0
1958	63.0
1959	38.0
1960	39.0
1961	28.0
1962	61.0
1963	45.0
1964	67.0
1965	96.0
1966	58.0
1967	84.0
1968	64.0
1969	76.0
1970	57.0
1971	163
1972	134
1973	94.0
1974	101
1975	114
1976	97.0
1977	32.0
1978	67.0
1979	48.0
1980	117
1981	44.0
1985	118
1986	236
1987	54.0
1988	31.0
1990	26.0
1991	37.0
1994	34.0
1996	67.0
1997	139
1998	140
1999	117
2000	40.0
2001	20.0
2002	21.0
2003	19.0
2004	29.0
2005	88.0
2006	86.0
2007	36.0
2008	44.0
2009	71.0
2010	45.0
2011	143
2012	44.0
2013	31.0
2014	38.0
2015	35.0
2016	53.0
2017	143
2018	59.0
2019	74.0
2020	54.0
2021	26.0
2022	29.0

About this series

Everything below is a property of the data rather than a rating of it. There is deliberately no single confidence score: how much a gap matters depends on what you are about to do with the series, and only you know that.

Source	United States Geological Survey — National Water Information System · US Government work — public domain
How the values came to exist	Derived Computed by Hydrionis
Period held	1903–2022
Completeness	93.3% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	5 separate periods inside 1903–2022 hold no value. The longest runs from 1982 to 1984 — 3 years with no reading. They are drawn as breaks in the line and are never interpolated across.
Continuity	The record begins in 1903 and is not continuous from it: 120 years separate the first value from the last, and 93% of the years between them are held. The span is not the record.
Inputs last read	2026-10-01 · when the records this was computed from were last read from their publishers
Calculation date	2026-08-24 · when the calculation method was last versioned, not a reading of any publisher
Redistribution	Permitted by the upstream licences
Commercial reuse	Permitted by the upstream licences. No Hydrionis access tier can widen this.
Methodology	How this was produced

The snow standing above this water

1 automated snow station sits inside this drainage area, weighing the snowpack rather than measuring how deep it is.

510

Fullest snowpack recorded at Oxford Spring, in 2023 (mm of water)

72

Thinnest, in 1987 (mm of water)

March

Month the pack is usually at its fullest

May

Month the pack has gone by, in half of years

Peak snowpack at Oxford Spring

Water years 1981–2026. Each point is the fullest month of that snow season.

A water year runs October to September and is named for the year it ends, so the snow of one winter stays in one point. The value is the fullest month, not the fullest day: a pack that peaked sharply mid-month reads lower here than a single measurement taken at the right moment would.

View the data behind this chart

Underlying data
Period	Oxford Spring (mm)
1981	88.0
1982	432
1983	319
1984	469
1986	410
1987	72.0
1988	168
1989	288
1990	162
1991	177
1992	92.0
1993	320
1994	161
1995	239
1996	334
1997	485
1998	349
1999	251
2000	261
2001	157
2002	275
2003	153
2004	310
2005	221
2006	357
2007	156
2008	290
2009	208
2010	193
2011	358
2012	199
2013	166
2014	248
2015	144
2016	196
2017	351
2019	260
2020	193
2021	159
2022	157
2023	510
2024	402
2025	266
2026	94.0

Why the snow is not read against the river here

HAMMOND (EAST SIDE) CANAL NEAR COLLINSTON, UT measures a canal, not a natural channel. What passes through it is an operating decision — how much was diverted, and when — so comparing it with what the sky or the mountain delivered would describe the operator rather than the hydrology.

Every gauge Hydrionis holds within this area

Gauges within the Lower Bear-Malad and what each holds
Gauge	Measures	Values	Record
BEAR RIVER NEAR COLLINSTON, UT	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	357	1890–2026
WEST SIDE CANAL NEAR COLLINSTON, UT	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	180	1913–2026
HAMMOND (EAST SIDE) CANAL NEAR COLLINSTON, UT	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	152	1960–2026
LITTLE MALAD RIVER AB ELKHORN RES NR MALAD CITY ID	catchment area, annual maximum river flow	29	1941–2026

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 — 16010204. 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
Gauge	Evidence	Established
BEAR RIVER NEAR COLLINSTON, UT	Stated 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/4	2026-10-02
WEST SIDE CANAL NEAR COLLINSTON, UT	Stated 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/4	2026-10-02
HAMMOND (EAST SIDE) CANAL NEAR COLLINSTON, UT	Stated 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/4	2026-10-02
LITTLE MALAD RIVER AB ELKHORN RES NR MALAD CITY ID	Stated 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/4	2026-10-02

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 5 of them, which makes it a full profile.

Information-gain signals held for this water body
Signal	Held	Counts
Gauges holding a real record	3	yes, 3 or more
Years spanned	137	yes, 20 or more
Values held	1,255	yes, 1000 or more
Distinct measurements	6	yes, 2 or more
Publishers measuring it	2	yes, 2 or more
Official identifiers	1	recorded, not counted

Use this data

Machine-readable JSON /api/v1/observations/by-subject/gauge-usgs-10118000.json
How to cite this, and who you must credit
How these figures were produced
Request this at a different scale, format or geography

No bulk download is offered here, which is a licence position rather than a product one: at least one contributing publisher does not permit redistribution. The values can be read on the page, cited, and pointed to at source.

Attribution and citation

Suggested citation for Hydrionis

Hydrionis (2026), Lower Bear-Malad gauge records, accessed 2026-10-05, hydrionis.com/waters/united-states-lower-bear-malad/

Cite Hydrionis where you rely on values Hydrionis computed, on the method that produced them, or on the compilation itself. The underlying measurements remain the publishers’ and their attribution requirements apply to you directly.

Recommended, not required. Hydrionis does not claim rights over unmodified public data it relayed, and doing arithmetic on somebody else’s measurements does not make them Hydrionis’s. Cite the version and the access date: the Lower Bear-Malad gauge records changes as publishers release and as methods are revised, and a citation without both cannot be checked later. Full guidance is on cite and reuse.

None of the contributing licences requires attribution. Crediting the publishers is still good practice and they are listed above.

Where these figures come from

MeasuredHigh confidence2023-05-18

Source: USGS — National Water Information System, USGS site 10118000, annual peak streamflow. Licence: Open.

Method: The instantaneous maximum discharge of each water year as published by USGS, dated to the day it occurred. One value per October-to-September water year; where the publisher lists both a systematic and a historic peak for a year, the larger is the annual maximum. Values the publisher marks as maximum daily averages are not held here, because they are not instantaneous peaks. Values marked as bounded rather than measured are held as censored observations carrying the bound. Cubic feet per second are converted to cubic metres per second and the publisher unit is recorded alongside.

Rating curves are extrapolated at extreme discharges, so the largest values in a peak series carry the largest measurement uncertainty. 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 1 October 2026.