I don’t know a lot about grouse but if grouse didn’t open a month before pheasant I would never go. Since they are in the woods though the hunting is better and easier later in the year once leaves thin out. Maybe I’ll try once this year later but generally I only go during the first month.
Probably about the closest big area is the Mille Lacs WMA and Rum River State Forest.
There’s a lot more grouse further up north in the Superior National Forest areas like Orr, Ely, Isabella and up. I’ve been going to Isabella but am going to try Orr next, I don’t know what is better.
If you go up north you are going to find that 95% of people just drive around on forest roads in their vehicle or on ATVs and road hunt. It’s really annoying trying to actually walk somewhere and have a convoy of ATVs pass you. Walking up to one on the road and flushing it like in the video is more often driving up on an ATV and shooting it on the ground I think for most people Try to find smaller trails or ones that don’t look used much if you want to walk.