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Slave River Delta

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description Slave River Delta Overview

The Slave River Delta is a large freshwater delta in Canada's Northwest Territories, formed where the Slave River enters Great Slave Lake. Its network of channels, shallow lakes, marshes, mudflats, and vegetated islands creates productive habitat for fish, muskrats, beavers, and many species of waterfowl. The delta is an important nesting, feeding, and staging area for migratory birds and also supports the subsistence and cultural activities of nearby Indigenous communities.

help Slave River Delta FAQ

Where does the Slave River Delta begin and end?

The delta forms where the Slave River divides into channels before entering Great Slave Lake in Canada's Northwest Territories. Its distributaries create shallow lakes, marshes, mudflats, and vegetated islands.

Which communities are closest to the Slave River Delta?

Fort Resolution lies near the delta on the south shore of Great Slave Lake, and Fort Smith is farther upstream on the Slave River. The wetland has long supported Indigenous travel, harvesting, fishing, and cultural use.

Why is the Slave River Delta important for birds?

Its marshes, shallow water, and mudflats provide breeding, feeding, and staging habitat for waterfowl and other migratory birds. Seasonal flooding continually changes which parts of the delta are accessible.

How does Great Slave Lake affect the delta?

Lake levels, river discharge, ice, and wind-driven water movement all influence flooding within the delta. Those water-level changes shape fish access, muskrat and beaver habitat, and the distribution of wetland plants.

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