Effective April 1, 2021, this preserve is open to the public. Please observe social distancing guidelines, follow all posted site usage/visitation guidance and wear a mask whenever encountering other guests.
The taking off or landing of unmanned aerial vehicles (UAVs or “drones”) is prohibited on the preserve.
This property is privately owned and managed in order to protect the sensitive species that call it home. We appreciate your help in protecting the landscape and respecting all those who enjoy it.
What Makes Cox Island Special
Seven miles inland from the Pacific Ocean, this island on Oregon's central coast is an excellent example of an estuarine saltmarsh ecosystem. Low elevation leads to daily floods at high tide. At low tide, the island is dissected by a maze of tidal channels, adjoined by expanses of mudflats.
What TNC Has Done/Is Doing
Volunteers help control the only known Oregon population of saltmeadow cordgrass (Spartina patens), an invasive, introduced species that threatens native wetland vegetation. Researchers believe it arrived decades ago in packing material for clams, and TNC ecologists and volunteers are working to control the species and prevent it from spreading to other coastal marshlands.