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North Cascades Lowland Forests

Ecoregion in Cascade Range, WA

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The North Cascades Lowland Forests ecoregion is composed of low mountains, broad glaciated valleys, and glacial-fed rivers that receive, on average, 60 to 90 inches of precipitation per year. Extensive, productive rainforests have developed under the mild maritime climate and are dominated by western hemlock, Douglas-fir, and western red cedar. Pastures occur in the valleys.

— EPA

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