The National Parks RVing Guide, the definitive guide for RVers seeking information on campgrounds in the National Park System where they can park their rigs, has been added to Apple's App Store. 

If you're an RVer who likes to explore the National Park System, you'll want to download this free app.

Last year we debuted this guide as an eBook and in PDF version. Now we've repackaged it as an app that not only lets you research National Park System campgrounds that can handle RVs — fifth-wheels, trailers, and pickup campers — but which includes links to campsite reservation pages, park pages, and locator maps.

This app is packed with RVing specific details on more than 250 campgrounds in more than 70 parks.

You can search by park name, by state, or by region of the country, and we point out campgrounds that can handle big rigs (we provide maximum length numbers), those that are cellphone friendly, those with showers and dump stations, and those with ADA sites. We list nightly fees, the nearest town with fuel, even elevations.

You'll also find stories about RVing in the parks, some tips if you've just recently turned into an RVer, and some planning suggestions. A bonus that wasn't in the eBook or PDF are feeds of Traveler content: you'll find our latest stories as well as our most recent podcasts just a click away.

So whether you have an iPhone or an Android, you can download this app and start exploring the campgrounds in the National Park System where you can park your rig.

Astute readers have already pointed out that Wind Cave National Park was mistakenly listed under North Dakota, and that the Fort Pickens Campground within Gulf Islands National Seashore was listed under Mississippi and not Florida and we're working on fixing those glitches, if they haven't been fixed already.

Don't hesitate to reach out if you spot any errors, or if you have suggestions for future iterations (we have a few in mind, but like suggestions).

P.S. -- The guide's formal name is The Essential RVing Guide To The National Parks, but that's too long for the app stores, so we shortened it to National Parks RVing Guide.