Did you know a rainforest exists in the USA? Hoh Rainforest is folded into Olympic National Park in the northwest of Washington state and several trails beat a path through it.

The most popular is the Hoh River Trail, an out-and-back route that stretches for 18.5 miles one way, finishing up at Glacier Meadows. It's an oasis of green, with towering coniferous and deciduous trees and a swirl of vivid mosses and ferns.

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