Foster Island (Washington)
- See Foster Island (Ontario) for the island in the Canadian province of Ontario.
| Geography | |
|---|---|
| Location | Union Bay |
| Administration | |
United States | |
| City | Seattle |
| Additional information | |
| Time zone | |
| • Summer (DST) | |
Foster Island is an island in Seattle, Washington, USA's Union Bay. Bisected by State Route 520, it is part of the Washington Park Arboretum. There is a walking trail connecting Foster Island and the adjacent Marsh Island to mainland Seattle via a set of bridges and boardwalks.
Foster Island was once the Duwamish burial ground, Stitici, where the dead were placed in boxes tied up in the branches of trees.