Campgrounds with a verified length limit

A page exists here only when an official page states a maximum length for the whole facility. 6 campgrounds qualify today; the rest wait for site-level records.

• Upper Pines CampgroundYosemite National Park. No hookups. All year35 ft RV, 24 ft trailer
• North Pines CampgroundYosemite National Park. No hookups. Apr 21–Oct 26 (approximate, as listed by NPS for the current season)40 ft RV, 35 ft trailer
• Lower Pines CampgroundYosemite National Park. No hookups. Apr 21–Oct 19 (approximate, as listed by NPS for the current season)40 ft RV, 35 ft trailer
• Mather CampgroundGrand Canyon National Park (South Rim). No hookups. Peak season March 1 to November 30; winter reservations December 1 to February 28. Roads may not be plowed after storms; campsites are never plowed.30 ft RV
• Trailer Village RV CampgroundGrand Canyon National Park (South Rim). 30/50 amp electric. Open year-round50 ft RV
• Fishing Bridge RV ParkYellowstone National Park. 30/50 amp electric. 2026: May 8 to October 18. 2027: May 14 to October 17. Dates subject to change.95 ft combined

Checked but not listed

• Watchman Campground, Zion National Park: The official pages state no campground-wide maximum RV length; a site-level example is not a facility limit. Page deferred until RIDB site records are loaded. Hookups as stated: "Standard electric sites in A & B loops may be used for either tent or RV camping. Electric sites are all 30 amp, with only a handful of sites that supply 50 amp. There are no full-hookup campsites." (official page).

All records, with the wording each number was taken from, are in facilities.json, retrieved 2026-10-16. Method and the path to site-level data: methodology.