Insight Bowl Tailgating?

Anyone know of tailgating for regular fans at the game? And, for a thrifty student such as myself, most importantly, is it free? Or a fee to enter the tailgating area? Two years ago we ended up in a big tailgating "party" but I can't remember if it was free or how we even stumbled upon it to be honest. Any insight is appreciated. Thanks!

The official Gopher tailgate party info can be found HERE

Great location, should be a good time.