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River

Copper River

460 km from source to mouth · United States.

United StatesUnited StatesFlows into Gulf of Alaska

Follow the riverMonth by month

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

In numbers

Length

460km

Average flow

1,000m³/s

Basin

62,500km²

Drop

1,013m

from 1,019 m to 6 m

Country

1

The journey

From source to mouth

460 km of river and 13 stops on the way: 0 towns and cities on its banks, dams, bridges and the tributaries that feed it.

1,019 m6 m
Copper Glacierat 1,019 m0 km
Copper Lake7.2 km²35 km
Chistochina Rivertributary118 km
Gakona Rivertributary175 km
Gulkana Rivertributary190 km
Tonsina Rivertributary269 km
Chitina Rivertributary297 km
Miles Lake36 km²427 km
Gulf of Alaskaat 6 m460 km
0100200300400460 km
  1. 0 kmCopper Glacierat 1,019 m
  2. 35 kmCopper Lake7.2 km²
  3. 80 kmSlana Rivertributary
  4. 81 kmCobb Lakes1.1 km²
  5. 118 kmChistochina Rivertributary
  6. 175 kmGakona Rivertributary
  7. 190 kmGulkana Rivertributary
  8. 203 kmTazlina Rivertributary
  9. 215 kmKlutina Rivertributary
  10. 269 kmTonsina Rivertributary
  11. 297 kmChitina Rivertributary
  12. 400 kmBremner Rivertributary
  13. 427 kmMiles Lake36 km²
  14. 427 kmMillion Dollar Bridge
  15. 460 kmGulf of Alaskaat 6 m

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

River in Alaska

At the mouth it carries 1,000 m³/s on average: an Olympic pool every 2.5 seconds. It drops from 1,019 m to 6 m, 2.2 m per kilometre on average. Its basin covers 62,500 km², about the size of LV. Highest water, with the snowmelt: from May to June; lowest: from January to April. No large dam holds it back: it is one of the world's free-flowing rivers.

Read more on Wikipedia

Where to start

  • CordovaLargest city on its banks · 2,196 people
  • Merle K (Mudhole) Smith Airport (CDV)Nearest airport with scheduled flights, 16 km from the cityCar hire at ANC airport (Anchorage)Discover Cars · Affiliate link
  • On the water3 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • Kayak and canoe1 put-ins and rapids mapped (OpenStreetMap)
  • JulyThe best months to visit

Copper River, month by month

Highest water: from May to June

Lowest water: from January to April. Freezing months (average below −4 °C): from November to March. Melting snow makes up much of its water. Best months to visit: July.

170
-18°34 mmJan
170
-14°36 mmFeb
170
-8°27 mmMar
170
-1°24 mmApr
4,100
6°33 mmMay
3,800
11°56 mmJun
3,600
13°69 mmJul
1,300
12°66 mmAug
1,600
6°71 mmSep
1,100
-2°60 mmOct
640
-13°47 mmNov
170
-17°50 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 170 m³/s in the lowest month to 4,100 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

Copper River: the basin in numbers

65,703 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.
  • 49people live in the basin
  • 1,249maverage altitude of the basin
  • 662mmof rain a year (basin average)
  • -4.9°Caverage air temperature
  • 56%protected areas
  • 1.3%covered by lakes
  • 10%glaciers
  • 47%permafrost

What covers the basin

  • 10% Forest
  • 10% Ice

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

Copper River: what you find on the way

  • 2WaterfallsLiberty Falls, Whiting Falls
  • 1RapidsAbercrombie Rapids
  • 3Boat ramps

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

Cross-checked with our atlases

Copper 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

Lakes and reservoirs (3)

Lakes it flows through, by Lakeyas

  1. Copper Lakekm 347.2km²
  2. Cobb Lakeskm 791.1km²
  3. Miles Lakekm 41536km²

Lakeyas is coming soonOpen Lakeyas ↗

From space

The source and the mouth, seen from orbit

Copper River: satellite view of the source
The source14 km across
Copper River: satellite view of the mouth
The mouth35 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

Copper River in pictures

Río Copper, Copper Center, Alaska, Estados Unidos, 2017-08-24, DD 01
Diego Delso · CC BY-SA 4.0
Río Copper, Glennallen, Alaska, Estados Unidos, 2017-08-22, DD 113
Diego Delso · CC BY-SA 4.0
Copper River - panoramio
Eric Spenle · CC BY 3.0
Copper River ENBLA01
Enrico Blasutto · CC BY-SA 4.0

Tributaries

Where it flows, and what flows into it

Tributaries (12)

Also: Gulkana River, Klutina River, Chitina River, Gakona River, Bremner River, Tazlina River, Martin River, Slana River, Chistochina River, Tonsina River, Tiekel River, Wernicke River

Where these numbers come from

Name, length, placesWikidata (Q1131444) · 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 — 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