settled sediment

Why the North Saskatchewan River has gone from brown to blue

Why the North Saskatchewan River has gone from brown to blue

The North Saskatchewan River looks less like chocolate milk than usual. The clear, aquamarine waters have revealed hidden sandbars, darting fish, submerged shopping carts — and a flood of questions from Edmontonians seeking clarity on the colour change. The river, which starts at the Saskatchewan Glacier in the Columbia Icefields in Alberta and flows through to central Saskatchewan, is usually a murky brown by the time it reaches Edmonton in summer.