Hamilton Island

Located in North Bonneville within the Columbia River Gorge National Scenic Area, Hamilton Island provides access to the Columbia River near the Bonneville Lock and Dam. This non-reservable public facility is part of the Navigation Lock Visitor Area and offers a practical launch point for kayakers, canoeists, and motorboaters. The site features interpretive information about the Boat Restriction Zone and local history, including details about the historic Cascade Rapids that once required portaging in this area.

Paddlers should be aware that water levels can affect launch conditions, particularly during low water periods. Those planning to pass through the Bonneville Lock should contact the facility in advance, as private boat lockages operate on a limited schedule (typically twice daily) unless arrangements are made to transit with commercial vessels. The ramp can accommodate trailer backing in various water conditions, making it accessible for launching different watercraft.

The area offers excellent views of the Columbia River Gorge and opportunities to explore nearby natural areas, including Franz Lake and Pierce National Wildlife Refuges. Nearby camping options at Eagle Creek Campground and Wahtum Lake Campground provide convenient overnight accommodations for multi-day paddling trips.

This recreation area is part of Bonneville Lock and Dam