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Hamilton Island

Authoritative
Skamania County, Washington, 98639→|Columbia River· coastal→|North Bonneville

Location

GPS Coordinates
USGS1 data sourceUpdated Mar 2026

Nearby Ramps

Boat Ramp on Columbia River
Columbia River
0.0 mi
Beacon Rock State Park
Columbia River
2.8 mi
Port of Cascade Locks Ramp
Columbia River (Bonneville Reservoir)
4.0 mi
The Fishery
Columbia River (Willamette to Bonneville)
4.0 mi
Boat Ramp on Duncan Creek
Duncan Creek
3.9 mi
More nearby ramps

Hamilton Island is a public boat ramp on Columbia River in North Bonneville, Skamania County, Washington (98639). GPS coordinates: 45.6340°N, 121.9656°W.