Ginkgo Petrified Forest State Park - United States
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Best time to visit Ginkgo Petrified Forest State Park
Late spring (April through early June) and early fall (September and October) are the most comfortable times for RV travel, with mild temperatures, blooming sagebrush country, and lighter crowds. Summer brings hot, dry weather often above 90 F, ideal for swimming in Wanapum Lake but demanding for RVs without strong air conditioning. The Wanapum campground is generally open year-round, though some loops and services are reduced in winter, so confirm site availability before arriving. Winter visits are quiet, with the interpretive center operating on reduced hours.
Cold temperatures; interpretive center on reduced winter hours
Possible snow on I-90 Snoqualmie Pass
Cool, breezy shoulder season
Wildflower season; mild RV weather
Excellent shoulder-season window
Warm, dry early summer
Peak season; book sites early and plan for hot afternoons
Hot and dry; wildfire smoke possible
Comfortable temperatures and lighter crowds
Pleasant fall window before cold weather sets in
Cool, quiet shoulder season
Cold; interpretive center on reduced winter hours
Things to do at Ginkgo Petrified Forest State Park
- Trees of Stone Interpretive Trail EasyRV parking available
The Trees of Stone Interpretive Trail is a 1.25-mile loop near the Trailside Museum that winds past more than 20 petrified logs in their original settings. Interpretive signage explains the geology of the petrified wood. The trailhead has parking suitable for vehicles and smaller RVs. nps.gov/places/ginkgo-petrified-forest-national-natural-landmark.htm
- Ginkgo Petrified Forest Interpretive CenterRV parking available
The interpretive center sits on a bluff above the Columbia River and displays more than 30 varieties of petrified wood, including rare ginkgo specimens. Outdoor exhibits and overlooks offer expansive river views. The day-use lot accommodates RVs. nps.gov/places/ginkgo-petrified-forest-national-natural-landmark.htm
- Wanapum Lake Swim Beach and Day Use EasyRV parking available
The Wanapum Recreation Area features a swim beach and day-use picnic grounds along Wanapum Lake, a Columbia River reservoir. The shoreline stretches for thousands of feet, offering room to spread out on hot summer days. The day-use area is adjacent to the campground. parks.wa.gov
- Boating and Paddling on Wanapum LakeRV parking available
Wanapum Lake offers boat launching, kayaking, and stand-up paddling on the Columbia River reservoir. The recreation area has a boat ramp and trailer parking. Afternoon winds along the Columbia can pick up quickly, so paddlers should plan early outings. parks.wa.gov
- Fishing at Wanapum Recreation AreaRV parking available
Anglers can fish the Columbia River reservoir for smallmouth bass, walleye, and other warmwater species. Shore fishing is accessible from the day-use area, and the boat ramp provides launch access for anglers with watercraft. A Washington fishing license is required. parks.wa.gov
- Birdwatching and Wildlife Viewing EasyRV parking available
The shrub-steppe canyons around the park host golden eagles, sage thrashers, Say's phoebes, and many other species. Elk and bighorn sheep also frequent the surrounding ridges. Early morning and late afternoon at the Trailside Museum and Old Vantage Highway pullouts are productive times. nps.gov/places/ginkgo-petrified-forest-national-natural-landmark.htm
- Old Vantage Highway Scenic DriveRV parking available
The Old Vantage Highway connects the Wanapum Recreation Area to the Trailside Museum and Trees of Stone Trail through dramatic shrub-steppe and Ice Age Floods scenery. Pullouts allow short stops for photography and wildlife viewing. The route is paved and suitable for most RVs. nps.gov/places/ginkgo-petrified-forest-national-natural-landmark.htm
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RV Rentals Ginkgo Petrified Forest State Park
Ginkgo Petrified Forest State Park, WA, United States
How to get to Ginkgo Petrified Forest State Park
The park sits just off Interstate 90 at Vantage, Washington, roughly 150 miles east of Seattle (about 2.5 to 3 hours) and 170 miles west of Spokane (about 2.5 to 3 hours). RV drivers approaching from the west cross Snoqualmie Pass on I-90, a long mountain grade that can see snow and chain restrictions from late fall through early spring; check WSDOT pass conditions before traveling. The descent into the Columbia at Vantage includes a steep, sweeping grade onto the Vantage Bridge, so use lower gears and watch for crosswinds. The nearest commercial airports for fly-and-rent travelers are Seattle-Tacoma International (SEA) and Spokane International (GEG).
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