River
Gascoyne River
978 km from source to mouth · Australia.
AustraliaFlows into Shark Bay8th longest in Australia
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.
- 0 kmSourceat 578 m
- 416 kmLandor Rivertributary
- 515 kmThomas Rivertributary
- 728 kmLyons Rivertributary
- 911 kmGascoyne River Bridge
- 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.
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.
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.
- 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
- Miaboolya Beach8.4 km away26.0°C
Mountains at the source (1)
Within 15 km of the source, by Peakyas
- Thadoona Hill2.8 km away
Islands off the mouth (1)
Within 30 km of the mouth, by Islandyas
- Whitlock Island2.1 km away
Islandyas is coming soonOpen Islandyas ↗
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.
Photos
Gascoyne River in pictures




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, places | Wikidata (Q1495089) · 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 | Coastya, 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.