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River

Osage River

444 km from source to mouth · United States.

United StatesUnited StatesFlows into Missouri River

Follow the riverMonth by month

SourceMouth
The river and every tributary in its basin, drawn from RiverATLAS (CC BY 4.0).

In numbers

Length

444km

Average flow

310m³/s

Basin

39,627km²

Drop

63m

from 222 m to 159 m

Country

1

The journey

From source to mouth

444 km of river and 11 stops on the way: 6 towns and cities on its banks, dams, bridges and the tributaries that feed it.

222 m159 m
Marais des Cygnes Riverat 222 m0 km
Sac Rivertributary75 km
Harry S. Truman Reservoir187 km²142 km
Warsaw2,209 people147 km
Lake of the Ozarks176 km²296 km
Lake Ozark2,077 people296 km
Wardsville1,599 people400 km
Missouri Riverat 159 m444 km
0100200300444 km
  1. 0 kmMarais des Cygnes Riverat 222 m
  2. 11 kmMarais des Cygnes Rivertributary
  3. 11 kmLittle Osage Rivertributary
  4. 75 kmSac Rivertributary
  5. 142 kmHarry S. Truman Reservoir187 km²
  6. 147 kmWarsaw2,209 people
  7. 183 kmRiverview3,014 people
  8. 265 kmOsage Beach4,433 people
  9. 296 kmLake of the Ozarks176 km²
  10. 296 kmLake Ozark2,077 people
  11. 323 kmTuscumbia188 people
  12. 400 kmWardsville1,599 people
  13. 444 kmMissouri Riverat 159 m

Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.

River in Missouri, United States

At the mouth it carries 308 m³/s on average: an Olympic pool every 8.1 seconds. It drops from 222 m to 159 m, 0.1 m per kilometre on average. Its basin covers 39,627 km², about the size of CH. 11.9 million people live in it. Highest water: from May to June. It is heavily dammed: reservoirs can hold 151% of a year's flow.

Read more on Wikipedia

Where to start

  • Osage BeachLargest city on its banks · 4,433 people
  • Waynesville-St. Robert Regional Airport-Forney Field (TBN)Nearest airport with scheduled flights, 62 km from the cityCar hire at SGF airport (Springfield)Discover Cars · Affiliate link
  • On the water452 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From June to OctoberThe best months to visit

Osage River, month by month

Highest water: from May to June

Best months to visit: from June to October.

1,500
-2°39 mmJan
1,900
1°47 mmFeb
2,300
7°85 mmMar
2,900
13°98 mmApr
4,700
18°126 mmMay
4,300
23°114 mmJun
3,400
26°89 mmJul
2,700
25°93 mmAug
2,500
20°108 mmSep
2,800
14°96 mmOct
3,400
7°78 mmNov
3,500
1°62 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 1,500 m³/s in the lowest month to 4,700 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

Osage River: the basin in numbers

1,311,334 km² of land send their water to this river. This is what lives on it.

DammedReservoirs can hold 151% of a year's flow: much of the river is a chain of lakes.
  • 11.9millionpeople live in the basin
  • 9/km²people per km²
  • 1,002maverage altitude of the basin
  • 507mmof rain a year (basin average)
  • 7.4°Caverage air temperature
  • 4%protected areas
  • 0.7%covered by lakes
  • 134km³held in reservoirs

What covers the basin

  • 12% Forest
  • 37% Cropland
  • 44% 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

Osage River: what you find on the way

  • 45DamsMiller Lake Dam, Beisley Lake North Dam, Beisley Lake South Dam and 42 more
  • 2Waterfalls
  • 433Boat rampsTaberville Access, Sac RIver Access, Crowe's Crossing Access and 430 more
  • 17MarinasTruman State Park Marina, Hiawatha Beach Resort, Patriot Point Marina and 14 more
  • 2Boat rentalsScooters Boat Rental, Paradise Marina and Watersports
  • 1River beachesGrand Glaize Beach

From OpenStreetMap, within 3.1 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Osage 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.

  • 2lakes on its wayLakeyas
  • 5mountains at the sourcePeakyas

Lakes and reservoirs (2)

Lakes it flows through, by Lakeyas

  1. Harry S. Truman Reservoirkm 135187km²
  2. Lake of the Ozarkskm 280176km²

Lakeyas is coming soonOpen Lakeyas ↗

Mountains at the source (5)

Within 15 km of the source, by Peakyas

  1. Pepper Hill4.3 km away
  2. Timber Hill7.4 km away
  3. Blue Mound3.5 km away
  4. Deer Mound5.8 km away
  5. Hammer Hill11 km away

Open Peakyas ↗

From space

The source and the mouth, seen from orbit

Osage River: satellite view of the source
The source14 km across
Osage River: satellite view of the mouth
The mouth156 km across

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.

Photos

Osage River in pictures

Where these numbers come from

Name, length, placesWikidata (Q1619907) · CC0
Course, profile, basinRiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed from the source to the mouth given by Wikidata
FlowWaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0
Climate along the riverWorldClim (RiverATLAS), 1970–2000 · CC BY 4.0
Towns, bridges, damsWikidata · CC0; GeoNames · CC BY 4.0
Along the river© OpenStreetMap contributors · ODbL
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Our other atlasesLakeyas, 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.

beachesCoastyaFind your beach: sea temperature, sun and swimming month by month.Visit
lakesLakeyasEvery lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit
mountainsPeakyasEvery summit in 3D: summit weather, the 0 °C line, huts and trails.Visit
waterfallsCascadyasEvery waterfall: height, flow month by month and when it roars.Coming soonVisit
islandsIslandyasEvery island from the sea up: size, sea temperature, ferries and 3D.Coming soonVisit
riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.You are here
canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Coming soonVisit