Hayden Island-Government Island, COA 055

Government Island (center) Photo Credit: Port of Portland

Columbia River islands comprised of 826-acre West Hayden Island located north of the City of Portland just outside city limits and the Government Island complex located between River Mile 111 and 119. The complex includes Lemon and McGuire Islands and total about 2,225 acres.

COA ID: 055

Local Conservation Actions and Plans

Potential Partners

Special Features


  • designated by Metro as a Regionally Significant Habitat Conservation Area.
  • Geographic location at/near confluence of two major rivers
  • Important stopover in Pacific Flyway and for migratory fish
  • Large mosaics of multiple priority habitats

Protected Areas

  • 427-acre Jewett Lake Mitigation Site on Government Island
  • Government Island Game Management Area
  • Government Island State Recreation Area
  • Sand Island


Strategy Habitats

Specialized Local Habitats

  • Grassland habitat
  • Large riverine islands at / near the confluence with Willamette River
  • Mature cottonwood gallery forest
  • Off-channel habitat
  • Sand and Dredge spoils
  • Shoreline and shallow water habitat

Strategy Species