Ross Island

Ross Island is a river island in the Willamette River at Portland, composed of four interconnected landmasses covering about 400 acres with a natural division where Holgate Slough runs on the east side. The landscape today shows wetland and forest areas that are working through natural recovery.

The island underwent intensive sand and gravel mining between 1926 and 2001, during which about two-thirds of its terrain was extracted. This extraction period significantly altered the landscape and continues to shape the place today.

The island takes its name from Oregon pioneer Sherry Ross and supports habitats that visitors can observe today, home to more than 50 bird species including eagles and herons. This focus on wildlife makes the place valued by people interested in watching birds and nature.

Access to the island is only possible through organized volunteer work parties arranged by Portland Parks & Recreation and community partners. You should plan ahead and contact the relevant organizations to join these activities.

A lagoon bounded by an artificial levee connects the island to Hardtack Island, which was created in 1926 for dredging work. This artificial connection stands today as an unusual remnant from the mining era.

Location: Oregon

GPS coordinates: 45.48870,-122.66300

Latest update: December 10, 2025 16:21