I’ve never hunted ruffed grouse in the east.
That said, it would seem that in the east ruffed grouse are associated with either agriculture, or, the remains of what once was agriculture, abandoned farms, especially. Some of my best hunting is in areas of Pine and Aiken counties that were logged off at the turn of the last century, and then mostly forgotten about, save for periodic paper mill logging. There is a bit of evidence that people attempted to farm, but, scant evidence that it was worth the effort. Red pine and aspen do well in soil you can’t even grow vegetables in, and much of those two counties fall into that description.
The good news is if the state owns it, you can pretty much hunt it. The bad news is the state owns most of those two counties, and they are poor. One thing to hunt there, another entirely to live in an area that looks as if anything of value was scraped off a long time ago.
Best,
Ted