Hamma Hamma Balds Natural Area Preserve

The Hamma Hamma Balds Natural Area Preserve spans 957 acres of montane herbaceous ecosystems in the eastern Olympic Mountains of Washington State.

The Washington State Department of Natural Resources established the Hamma Hamma Balds Natural Area Preserve through land exchanges between various trusts during 2008.

The natural area serves as a research location for universities and institutions studying the geological formations and plant communities of the Pacific Northwest.

Access to the preserve requires prior contact with the DNR South Puget Sound Region Natural Areas Manager for permissions and visiting information.

The preserve contains basalt formations from the Eocene period and supports 200 species of plants, including the rare Roemer's fescue and common bluecup communities.

Location: Mason County

Website: https://www.dnr.wa.gov/hamma-hamma-balds-natural-area-preserve

Operator: Washington State Department of Natural Resources

Website: https://dnr.wa.gov/hamma-hamma-balds-natural-area-preserve

GPS coordinates: 47.58625,-123.08405

Latest update: March 10, 2025 00:10