47.3876901, -120.2662285

Rock Island Hydro Park Boat Ramp

Fee not yet verified Status not yet verified Public access

Rock Island Hydro Park Boat Ramp is a public access point in Douglas County, Washington, providing access to Columbia River. It sits within the Hammond Lake-Columbia River watershed.

Sourced from State of Washington . Last checked against the source on July 7, 2026.

Boat ramps on Columbia River

We track 9 public boat ramps on Columbia River, including this one. If you're planning to spend your time on a different stretch of the water, one of the launch points below may put you closer to where you're actually headed than Rock Island Hydro Park Boat Ramp does — they're listed here in order of distance from this ramp.

Other boat ramps in Douglas County

Douglas County tracks 8 public boat ramps in total, spread across several different rivers, creeks and lakes — not just Columbia River. Each one below shows which waterbody it's on, so you can tell at a glance whether it actually connects to the same water as Rock Island Hydro Park Boat Ramp or leads somewhere completely different.

Quick facts

County
Douglas County, Washington
Coordinates
47.3876901, -120.2662285
Waterbody
Columbia River
Access type
Public
Last verified
July 7, 2026
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