Quiet hours do not tell you when you can run a generator. They are a separate rule, they usually cover a different part of the day, and at most campgrounds the generator rule is the stricter of the two.
We read the notice text on all 5,435 campgrounds in Recreation.gov’s index on September 23, 2026. 704 publish quiet hours with times. Only 318 publish generator hours with times. 644 mention generators at all, which means roughly half the campgrounds that raise the subject never tell you when you are allowed to start one. 137 publish both sets of hours, and on those the two windows are rarely the same window.
The gap that catches people
Abram’s Creek in Great Smoky Mountains is the plain example. Its notice sets quiet hours from 10PM to 6AM. A separate line prohibits generator use from 8PM to 8AM. So 8 to 10 in the evening is not quiet hours, and you still cannot run a generator. The same listing caps noise outright: generators over 60 decibels are prohibited regardless of the hour.
The morning end catches people too. Baker Dam, a BLM site in Utah, posts quiet hours of 9 pm to 7 am and generator hours of 9 am to 9 pm. Quiet hours end at 7. Your generator is still not allowed for two more hours.
The narrow ones
Apgar in Glacier is the tightest we found. Generator use is permitted only from 8 to 10 a.m., noon to 2 p.m., and 5 to 7 p.m. Six hours, in three blocks, against quiet hours of 10 pm to 6 am. If you arrive at 3 in the afternoon needing to top up a battery bank, you wait.
Blackwoods in Acadia splits the rule by loop: no generators at all in B-Loop, and in A-Loop only 8am to 10am and 4pm to 7pm. Book the wrong loop and the answer is never.
Andrew’s Cove in the Chattahoochee-Oconee adds a duration cap on top of a window: up to 4 hours per day, between 6am and 10pm. A window tells you when. A cap tells you how much, and the two are different constraints.
The friendliest version is where the rules dovetail. Baker Creek in Great Basin allows generators 8:00 am to 8:00 pm and sets quiet hours 8:00 pm to 8:00 am. One line picks up where the other stops, with nothing to work out.
What to do
Read the listing’s notice text before you book, not the amenity icons, and look for the generator line specifically. If it is absent, assume you do not have permission and ask the campground.
Then size your day so you are not dependent on the window. If a six-hour block is all you get, the question is whether your charging can finish in it, which is an arithmetic problem: run the numbers in our RV solar calculator or, for a right-sized unit, the generator sizing tool. Solar has the advantage here, because nobody has ever published quiet hours for a panel.
The posted sign and the campground host’s current guidance beat any website, this one included. If your plan is to avoid the question entirely, Utah free camping and Montana free camping are where the dispersed options start, and BLM’s own noise standard is covered in what BLM quiet hours actually say.
Sources
- Recreation.gov, Apgar Campground, Glacier National Park
- Recreation.gov, Blackwoods Campground, Acadia National Park
- Recreation.gov, Abram's Creek Campground, Great Smoky Mountains National Park
- Recreation.gov, Andrew's Cove Campground, Chattahoochee-Oconee National Forest
- Recreation.gov, Baker Dam Campground, BLM Baker Dam Recreation Area
- Recreation.gov, Baker Creek Campground, Great Basin National Park