Cascadia Marine Trail - Posey Island

Campground near Roche Harbor, Washington (tagged tourism=camp_site).

Operator: not recorded in OpenStreetMap
Fee: No fee (tagged fee=no)
Reservations: Reservation required (tagged reservation=required)
Capacity: Tagged capacity=2
Dump station on site: No (tagged sanitary_dump_station=no)
Water: not recorded in OpenStreetMap
Electrical hookups: No (tagged power_supply=no)
Toilets: Yes (tagged toilets=yes)
Showers: not recorded in OpenStreetMap
Website: https://parks.wa.gov/find-parks/state-parks/posey-island-state-park
Coordinates: 48.61838, -123.16784 (view on OpenStreetMap)

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Nearest RV dump station

RV dump station near Friday Harbor · 15 mi

Nearest campgrounds

Camp Nor'Wester · Campground · 3.4 mi · near Roche Harbor
Troubadours · Campground · 3.5 mi · near Roche Harbor
Wayfarers · Campground · 3.5 mi · near Roche Harbor
Islanders · Campground · 3.5 mi · near Roche Harbor
Cascadia Marine Trail Campsite - Stuart Island · Campground · 4.4 mi · near Roche Harbor · charges a fee

All dump stations and campgrounds in Washington

Source: OpenStreetMap node 9789412042, data as of 2026-10-21. Map data © OpenStreetMap contributors (ODbL). Straight-line distances. The nearby city is the closest US Census Bureau place (1.86 mi away).