Frontier, North Dakota, offers a few options for dumping black and gray water and filling up fresh water.The Lindenwood Campground provides waste disposal services, fresh water fill-up, and a hose for flushing tanks. The StaMart Travel Center also has dump facilities and trash bins. Other options offering similar dumping facilities include the Pilot Flying J Travel Plazas and Red River Valley Fair Campground. Most dump stations are near popular landmarks and have access to gas stations, restaurants, and other services.