River
Bear River
790 km from source to mouth · United States.
United StatesFlows into Great Salt Lake
In numbers
Length
790km
Average flow
68m³/s
Basin
18,197km²
Drop
1,329m
from 2,608 m to 1,279 m
Country
1
The journey
From source to mouth
790 km of river and 6 stops on the way: 1 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSourceat 2,608 m
- 90 kmEvanston12,133 people
- 132 kmWoodruff Narrows Reservoir8.7 km²
- 339 kmEast Dingle Bridge
- 461 kmAlexander Reservoir4.1 km²
- 475 kmGrace Pegram Truss Railroad Bridge
- 543 kmOneida Narrows Reservoir1.4 km²
- 790 kmGreat Salt Lakeat 1,279 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River in southwestern Wyoming, southeastern Idaho, and northern Utah in the United States
At the mouth it carries 68 m³/s on average: an Olympic pool every 37 seconds. It drops from 2,608 m to 1,279 m, 1.7 m per kilometre on average. Its basin covers 18,197 km², about the size of FJ. 190,000 people live in it. Highest water, with the snowmelt: from April to May; lowest: from December to March. Dams and reservoirs hold back a large share of its water (18% of a year's flow).
Where to start
- EvanstonLargest city on its banks · 12,133 people
- Ogden Hinckley Airport (OGD)Nearest airport with scheduled flights, 88 km from the cityCar hire at SLC airport (Salt Lake City)Discover Cars · Affiliate link↗
- On the water22 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
- From June to SeptemberThe best months to visit
Bear River, month by month
Highest water: from April to May
Lowest water: from December to March. Freezing months (average below −4 °C): from December to February. Melting snow makes up much of its water. Best months to visit: from June to September.
From about 12 m³/s in the lowest month to 140 m³/s in the highest. An estimate: the monthly flow is modelled from the lowest and highest months of WaterGAP (RiverATLAS, 1971–2000) and the rain and snow along the river (WorldClim). Dams change the real rhythm. The chip is the average air temperature; below it, the month's rain.
Plan the trip
Plan the trip: boat trips, a bed by the river, a car
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
The basin
Bear River: the basin in numbers
18,548 km² of land send their water to this river. This is what lives on it.
- 190,000people live in the basin
- 10/km²people per km²
- 2,011maverage altitude of the basin
- 414mmof rain a year (basin average)
- 4.2°Caverage air temperature
- 6%protected areas
- 2.2%covered by lakes
- 0.2km³held in reservoirs
What covers the basin
- 46% Forest
- 17% Cropland
- 38% Pasture
- 1% Towns and cities
RiverATLAS (HydroATLAS v1.0, CC BY 4.0): land cover, people, protected areas, glaciers and dams over the whole basin upstream of the mouth.
Along the river
Bear River: what you find on the way
- 1Weirs
- 1Waterfalls
- 21Boat rampsOneida Narrows Road and 20 more
- 1MarinasCutler Canyon Marina
From OpenStreetMap, within 2.0 km of the river. Not mapped is not the same as not there.
Cross-checked with our atlases
Bear River in our other atlases
What our sister atlases know about the waterfalls on this river, the lakes it flows through, the beaches at its mouth, the mountains where it rises and the islands off its mouth.
3lakes on its wayLakeyas
13mountains at the sourcePeakyas
Lakes and reservoirs (3)
Lakes it flows through, by Lakeyas
- Woodruff Narrows Reservoirkm 878.7km²
- Alexander Reservoirkm 3024.1km²
- Oneida Narrows Reservoirkm 3561.4km²
Lakeyas is coming soonOpen Lakeyas ↗
Mountains at the source (13)
Within 15 km of the source, by Peakyas
- Hayden Peak15 km away · prominence 351 m3,804m
- Kletting Peak12 km away · prominence 150 m3,671m
- Humpy Peak14 km away3,315m
- Ostler Peak14 km away
- The Cathedral15 km away
- A-1 Peak11 km away
- Deadman Mountain6.6 km away
- Gold Hill9.0 km away
5 more on PeakyasOpen Peakyas ↗
From space
The source and the mouth, seen from orbit


Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data 2016), CC BY 4.0. The glowing line is the river as drawn by RiverATLAS.
Tributaries
Where it flows, and what flows into it
Tributaries (2)
Also: Little Bear River, Malad River
Where these numbers come from
| Name, length, places | Wikidata (Q813008) · CC0 |
|---|---|
| Course, profile, basin | RiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed from the source to the mouth given by Wikidata |
| Flow | WaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0 |
| Climate along the river | WorldClim (RiverATLAS), 1970–2000 · CC BY 4.0 |
| Towns, bridges, dams | Wikidata · CC0; GeoNames · CC BY 4.0 |
| Along the river | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Our other atlases | Lakeyas, Peakyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; HydroLAKES · CC BY 4.0; NOAA OISST |
Every source and licence is on the data sources page.
The family
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?
Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.