A few weeks ago a Vermont state campground would not let me register because my county and state- Litchfield, Connecticut had a higher covid case rate than they required. All counties in Ct and Mass don't meet their criterion and a lot in NY, NH, and Maine don't meet them either.
Here is the NE and Middle Atlantic map which shows the case rate by county-
https://accd.vermont.gov/covid-19/re...s-state-travel
Now a few weeks later I checked the Massachussets website and they say that camping fees are $17 per night for state residents and $55 for out of state residents. Fortunately when I actually book a reservation at Reserveamerica it is only $25 for out of state residents.
States in the NE seem to want to keep their campgrounds to themselves.
David