Cascade Head Biosphere Reserve

UNESCO Biosphere Reserve, inscribed 1976, in United States of America. The Cascade Head Biosphere Reserve and Experimental Forest is situated 136 km south-west of Portland on the Pacific Coast. The Experimental Forest was established in 1934 for scientific studies of typical coastal Sitka spruce (Picea sitchensis) and western hemlock (Tsuga heterophylla) forests found along the Oregon Coast. Since then, the forest stands have been used for long-term studies, experimentation and ecosystem research.