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In pictures: California's Basque shepherds

Precious water

These days, water is becoming a sought-after commodity in the western states, as farmers and herders compete with the sprawling housing market for the precious resource.

Herders like Phil must sometimes travel large distances just to fetch water for his flock.

"Because of so little rainfall, I can spend more than half my day picking up water and taking it to my sheep," he says.

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