Plymouth Park
John Day Lock and Dam, Lake Umatilla — lakeside, fishing
Location: Plymouth, WA, WA
Price: From $22 per night
Price range: $22–$50 per night
Rating: 4.2 out of 5 (443 reviews)
Season: May through October
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.The campground offers 32 sites with electric hookups.
Cell coverage (FCC estimate): strong signal. Actual signal may vary in remote areas. Best carrier: T-Mobile. Verizon 4G: 100%. AT&T 4G: 100%. T-Mobile 4G: 100%.
Amenities: Fire Rings, Picnic Tables, Drinking Water, Showers, Dump Station, Electric Hookups, Fishing, Boat Launch
Availability alerts: Set a free cancellation alert at camperwatch.org/campground/plymouth-park to be notified when sites open up.
Nice smaller Corps of Engineers park on the Columbia River with excellent water access for boating, fishing, and swimming. Restrooms and facilities are well-maintained with friendly host staff.
Wildlife alert: Douglas' Ground Squirrel, Rocky Mountain Mule Deer, Muskrat, Ring-billed Gull, Black-crowned Night Heron, and Spotted Towhee documented in the area.
Insider tips for Plymouth Park: Book early — this is a popular federal campground with limited availability. Request an electric hookup site if available, as most sites lack water/sewer hookups. Arrive prepared for sprinkler systems that activate late at night; tent campers should inquire about sprinkler guard availability.
Skip Plymouth Park if: You plan to tent camp and are sensitive to nighttime sprinkler systems that activate near midnight.. You need full hookups (water and sewer) — electric hookups are only on select sites.. You require camping outside May through October seasonal window..
Best time to visit Plymouth Park: May-October — Campground operates seasonally during these months only..
Nearby campgrounds: West Park (Or) (Umatilla, OR), Spillway Park - Chinook Shelter (Or) (Umatilla, OR), Mcnary Beach - Sockeye Shelter (Or) (Umatilla, OR), Hood Park (BURBANK, WA).
Cell Phone Coverage at Plymouth Park
Cell signal at Plymouth Park (Plymouth, WA): strong overall signal based on FCC broadband data. Best carrier: T-Mobile.
- Verizon 4G LTE: 100% coverage
- AT&T 4G LTE: 100% coverage · AT&T 5G: 100%
- T-Mobile 4G LTE: 100% coverage · T-Mobile 5G: 100%
Coverage data source: FCC Broadband Data Collection (BDC). Actual signal may vary due to terrain, tree cover, and distance from towers. Camper reports are more reliable than coverage maps in remote areas.
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.The campground offers 32 sites with electric hookups.
Verified facts
RIDB / Recreation.gov official databaseAmenities
RIDB /facilities /campsites · owner-verifiedStraight talk
CamperWatch intel · curated from camper reportsKnown issues, each with the workaround. Read before you book.
Insider tips & when to go
CamperWatch intel · hand-curated entryBook early
this is a popular federal campground with limited availability.
Request an electric hookup site if available, as most sites lack water/sewer hookups.
Arrive prepared for sprinkler systems that activate late at night; tent campers should inquire about sprinkler guard availability.
Campground operates seasonally during these months only.
Things to do nearby
RIDB /activities /recareas + intelConditions today
LiveCell signal
FCC BDC · quarterly datasetFCC maps are theoretical — camper reports confirm signal. Best carrier: T-Mobile.
Wildlife nearby
iNaturalist · research-grade · 8 kmLocation
Leaflet · OpenStreetMap tiles
Getting there →
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.
Campground entrance
Google Maps APICommunity
#community · posts, photos & Q&A · AI-moderated (Claude Vision)Pro tips
- Book on recreation.gov exactly 6 months ahead at 10am ET — John Day Lock and Dam, Lake Umatilla fills fast in peak season.
- Check current road conditions at John Day Lock and Dam, Lake Umatilla before arrival — seasonal closures common.
Frequently asked questions
RIDB facts + intel · FAQPage schema, speakableHow much does Plymouth Park cost per night?+
What season is Plymouth Park open?+
Does Plymouth Park have hookups?+
What is the maximum RV length at Plymouth Park?+
How do I make reservations at Plymouth Park?+
What is the cell service like at Plymouth Park?+
What season is Plymouth Park open, and what are check-in times?+
Official resources
●Data sources on this page
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