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River

Gascoyne River

978 km from source to mouth · Australia.

AustraliaAustraliaFlows into Shark Bay8th longest in Australia

Follow the riverMonth by month

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

In numbers

Length

978km

Average flow

20m³/s

Basin

79,000km²

Drop

578m

from 578 m to 0 m

Country

1

The journey

From source to mouth

978 km of river and 4 stops on the way: 0 towns and cities on its banks, dams, bridges and the tributaries that feed it.

578 m0 m
Sourceat 578 m0 km
Landor Rivertributary416 km
Thomas Rivertributary515 km
Lyons Rivertributary728 km
Gascoyne River Bridge911 km
Shark Bayat 0 m978 km
0200400600800978 km
  1. 0 kmSourceat 578 m
  2. 416 kmLandor Rivertributary
  3. 515 kmThomas Rivertributary
  4. 728 kmLyons Rivertributary
  5. 911 kmGascoyne River Bridge
  6. 978 kmShark Bayat 0 m

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

River in Western Australia

At the mouth it carries 20 m³/s on average: an Olympic pool every 125 seconds. It drops from 578 m to 0 m, 0.6 m per kilometre on average. Its basin covers 79,000 km², about the size of CZ. 2,816 people live in it. Highest water: from June to July; lowest: from October to January. No large dam holds it back: it is one of the world's free-flowing rivers.

Read more on Wikipedia

Where to start

  • BrockmanLargest city on its banks · 1,039 people
  • Carnarvon Airport (CVQ)Nearest airport with scheduled flights, 1 km from the cityCar hire in CarnarvonDiscover Cars · Affiliate link
  • On the water1 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From April to May and from July to SeptemberThe best months to visit

Gascoyne River, month by month

Highest water: from June to July

Lowest water: from October to January. Best months to visit: from April to May and from July to September.

12
32°26 mmJan
24
32°33 mmFeb
27
29°21 mmMar
23
25°15 mmApr
29
20°26 mmMay
56
16°36 mmJun
62
15°24 mmJul
46
16°11 mmAug
18
20°3 mmSep
5.6
23°3 mmOct
3.4
26°5 mmNov
3.4
29°5 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 3.4 m³/s in the lowest month to 62 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

Gascoyne River: the basin in numbers

73,671 km² of land send their water to this river. This is what lives on it.

Free-flowingDams upstream can hold only 0.0% of a year's flow: the river still keeps its natural rhythm.
  • 2,816people live in the basin
  • 0/km²people per km²
  • 394maverage altitude of the basin
  • 219mmof rain a year (basin average)
  • 23.6°Caverage air temperature
  • 1%protected areas

What covers the basin

  • 84% Pasture

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

Gascoyne River: what you find on the way

  • 1Boat ramps

From OpenStreetMap, within 2.3 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Gascoyne 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.

  • 1beach at the mouth or on the banksCoastya
  • 1mountain at the sourcePeakyas
  • 1island off the mouthIslandyas

Beaches (1)

At the mouth (25 km) and on the banks, by Coastya

  1. Miaboolya Beach8.4 km away26.0°C

Open Coastya ↗

Mountains at the source (1)

Within 15 km of the source, by Peakyas

  1. Thadoona Hill2.8 km away

Open Peakyas ↗

Islands off the mouth (1)

Within 30 km of the mouth, by Islandyas

  1. Whitlock Island2.1 km away

Islandyas is coming soonOpen Islandyas ↗

From space

The source and the mouth, seen from orbit

Gascoyne River: satellite view of the source
The source14 km across
Gascoyne River: satellite view of the mouth
The mouth37 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

Gascoyne River in pictures

Gascoyne
Rhyshuw1 ( talk ). · CC BY-SA 3.0
Gascoyne River Crossing - panoramio
Rob McGregor · CC BY 3.0
Dry Gascoyne River Bed - panoramio
Rob McGregor · CC BY 3.0
Gascoyne River at Landor-Mt Augustus Road crossing, July 2020 01
Calistemon · CC BY-SA 4.0

Tributaries

Where it flows, and what flows into it

Tributaries (3)

Also: Landor River, Lyons River, Thomas River

Where these numbers come from

Name, length, placesWikidata (Q1495089) · 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 atlasesCoastya, Peakyas, Islandyas — 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