Switchbacks and Retaining Walls on the Halemau'u Trail
The hiking trail is barely visible as it curves along the natural contours of a rocky hillside.
CCC Haleakala Crater Trails District. The Halemau'u Trail is marked by switchbacks and associated stone retaining walls as it ascends out of the crater. Note how it follows the natural topography, blending in with the natural environment.
U.S. National Park Service
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