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Plymouth Park
USACEU.S. Army Corps of Engineers — Plymouth · Washington · John Day Lock and Dam, Lake Umatilla
| Agency | USACEU.S. Army Corps of Engineers |
|---|---|
| Area | John Day Lock and Dam, Lake Umatilla |
| Location | Plymouth · Washington · John Day Lock and Dam, Lake Umatilla · 45.93373, -119.35071 · Map |
| Sites | 31 public sites counted from the federal listing — 30 standard electric; 1 group standard nonelectric |
| Getting a site | Reservable — the federal listing marks this campground as taking reservations. Some sites or seasons may still be first-come; the listing’s own words are below. |
| Hookups | Electric at 32 of 31 sites (up to 50 amp where reported) Water hookups at 32 of 31 sites Sewer hookups at 11 of 31 sites Full hookups (all three at one site) at 11 of 31 sites Counted site by site from affirmative reports in the federal record. A site with no report is not counted either way. |
| Max RV length | Longest reported site fits 55 ft Sites that fit at least — 25 ft: 32 sites · 30 ft: 32 sites · 35 ft: 32 sites · 40 ft: 31 sites |
| Months open | Not in federal data — the federal listing does not publish a season for this campground. Check the official description below or Recreation.gov. |
| Fees | Not reported — the federal listing carries no fee description for this campground. |
| Check-in / out | In 3:00 PM · Out 2:00 PM (most common in the listing) |
| Pets | Allowed at 33 sites, as reported |
| Accessibility | N |
| Phone | 541-739-1135 |
Check availability & book on Recreation.gov →
This site takes no reservations and shows no live availability. Source: Recreation.gov (RIDB export pulled November 5, 2026); this listing was last updated in the federal record on 2026-08-27.
From the official listing
Overview Plymouth Campground is located by the small town of Plymouth, Washington. The day use area and boat launch are on a small island on Lake Umatilla on the Columbia River.
Popular activities in the area include fishing, swimming, boating, water skiing and hunting. Recreation Visitors enjoy boating, water sports and swimming in the river.
Anglers fish for Chinook, steelhead, walleye, sturgeon, and shad. The boat ramp is located at the day use area for convenient river access. Facilities The campground offers 32 sites with electric hookups. Amenities include flush and pit toilets, showers, drinking water, a dump station and playground.
The day use area has a swim beach, boat ramp, flush toliets, vault toliet and courtesy dock. Natural Features The park is situated in a high desert environment on an island on the Columbia River. The island is covered with tall sage and Russian Olive trees, but shade is limited.
Wildlife is abundant in the area, and mule deer, waterfowl and raptors are commonly seen. Nearby Attractions McNary Dam and Visitor Center and Lake Wallula are two miles upstream from the campground. The lake offers additional opportunities for boating, swimming and fishing.
Directions, from the listing
From Kennewick, Washington take US-395 South or 23 Miles to Exit 131. Merge onto State Route 14 West and continue for 1 mile. Turn south onto Plymouth Road and continue for 1 mile. Follow the curve to Christie Road. The campground is the first left and the day use area is the second left.
Nearest federal campgrounds
25 mi straight-line · BURBANK WashingtonUSACEU.S. Army Corps of EngineersCharbonneau Park and Campground
33 mi straight-line · BURBANK WashingtonUSACEU.S. Army Corps of EngineersFishhook Park
38 mi straight-line · PRESCOTT WashingtonUSACEU.S. Army Corps of EngineersRooks Park (WA) Bennington Lake
54 mi straight-line · WashingtonUSACEU.S. Army Corps of EngineersWindust Park
55 mi straight-line · PASCO Washington
Trip Card — Plymouth Park
Plymouth · Washington · John Day Lock and Dam, Lake Umatilla
| Agency | USACE · U.S. Army Corps of Engineers |
|---|---|
| Location | Plymouth · Washington · John Day Lock and Dam, Lake Umatilla |
| Fees | Not reported in the federal data |
| Getting a site | Reservable |
| Hookups | Electric at 32 · full hookups at 11 |
| Max RV | Up to 55 ft |
| Months open | Not in federal data |
| Sites | 31 sites |
Book: recreation.gov/camping/campgrounds/233587 · Source: Recreation.gov, pulled November 5, 2026. Facility details come from federal recreation data and may be out of date — this site takes no reservations and shows no live availability; confirm details and book through Recreation.gov or the managing agency.