How we check listings

Every stop on RV TankStop comes from the operator's own page: the park, the county, the travel center or the store. We don't copy listings from other directories.

• We link the source. Each stop shows the page we read and the date we read it.
• We say what we couldn't confirm. If other sites list a dump station but the operator's page doesn't mention one, it goes under "Listed elsewhere, not confirmed".
• We flag access. Some dump stations are only for registered campers, some charge non-campers, and some close for winter. We show that up front.
• We recheck. Busy areas are rechecked every month and closures every week.

Prices and hours change. Call ahead before you drive out of your way. Directions open in Google Maps using the address from the operator's page.

About the maps

State outlines come from the U.S. Census Bureau's cartographic boundary files, which are in the public domain, as packaged in the open-source us-atlas project (ISC license, Michael Bostock). We simplified the shapes so pages load fast. The I-95 line and the Canada outline are drawn by hand from approximate points, so use the maps to get your bearings, not to navigate. Dots sit at the town, not the exact address.

When you type a ZIP code or town, or when a stop has no map point of its own, we use the center of its ZIP code. Those points come from the free federalgovernmentzipcodes.us data, as packaged in the open-source zipcodes project (BSD license). Distances are straight-line miles, so the drive is longer.