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Olympic National Park

Hoh Rain Forest — Temperate Rainforest, Not Tropical Jungle

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Transcript

The Hoh is a rainforest, but not a tropical one. Its defining combination is abundant moisture with a cool temperate climate. That difference shapes everything from tree species to decomposition rates.

Sitka spruce and western hemlock can reach immense size. Mosses and lichens drape branches because humid air reduces the risk of drying out. Fallen trunks can remain on the forest floor for decades, slowly becoming nurse logs for a new generation.

The apparent density can give the impression of untouched abundance. Yet even rainforest structure is dynamic. Windstorms open gaps, rivers migrate across floodplains, old trees fall and new ones compete for light. The forest’s stability comes from continuous change rather than from standing still.

The Hoh also benefited from political decisions to protect remaining old-growth forest on the peninsula while large areas outside park boundaries were logged. The contrast between protected and harvested landscapes helped define Olympic’s conservation identity.

Synthetic narration. Sources are linked below.

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