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Parks and campgrounds in Washington
National park units
- Ebey's Landing National Historical Reserveentrance fee: None, campgrounds: 2
- Ice Age Floods National Geologic Trailentrance fee: None
- Lake Roosevelt National Recreation Areaentrance fee: None, busiest month (2025): July
- Lewis & Clark National Historic Trailentrance fee: None, visitor centers: 1
- Mount Rainier National Parkprivate vehicle, 7 days: $30, busiest month (2025): August
- North Cascades National Parkentrance fee: None, busiest month (2025): July
- Olympic National Parkprivate vehicle, 7 days: $30, busiest month (2025): August
- Oregon National Historic Trailentrance fee: None, visitor centers: 1
- San Juan Island National Historical Parkentrance fee: None, busiest month (2025): July