- This 321-acre preserve protects the only known example of a “raised plateau” bog in the western coterminous United States, as well as occurrences of a state-candidate butterfly species, a state-sensitive plant, and two rare moss species. Raised plateau bogs have a central plateau that is noticeably elevated above the surrounding land due to thousands of years of peat accumulation slowly building up the surface of the bog. In the case of Crowberry Bog, the center of the plateau is approximately nine feet higher than the surrounding land. This creates ombotrophic conditions, meaning the bog only receives water and nutrients from direct precipitation rather than from the surrounding landscape. Vegetation in the bog is adapted to these conditions and includes plants such as sphagnum moss, bog laurel, Labrador tea, bog cranberry and black crowberry - after which the bog is named.
- Skookum Inlet Natural Area Preserve (dnr.wa.gov)
This 143-acre preserve protects a variety of salt-marsh communities and tideflats, along with a second growth forested buffer, that are important examples of wetland ecosystems in the southern Puget Sound. Chum and coho salmon spawn in the small creek which enters the estuary protected within the preserve.