Government Island

Government Island is a river island in the Columbia River north of Portland, Oregon, spanning about 1,760 acres with an extensive shoreline. The interior features natural wetlands and lakes that together form important wildlife habitat.

The island is connected to the Lewis and Clark expedition, whose team established a camp on the north side in 1805 during their exploration of the western frontier. This historical link to early American exploration adds significance to the location.

The island holds significance as a wildlife refuge that shields natural river habitats from urban expansion around Portland. Visitors can experience the diverse bird populations and undisturbed wetlands that define the ecological character of this stretch of the Columbia River.

Visiting the island requires a boat, with two docks available on the northern shore for access. Check ahead about current conditions and restricted areas, as parts of the island are protected and may have limited entry.

The island's interior contains Jewett Lake, a protected lake that requires special permission from the Port of Portland for visitor access. This restriction preserves a sensitive ecosystem found within the river.

Location: Oregon

GPS coordinates: 45.57500,-122.50800

Latest update: December 10, 2025 15:57