This from their newsletter this morning............
Fat, fat tire biking on ski trails-Griffin Myslivecek from GRIMBA (local mountain biking club) explained about an up and coming sport of riding bikes with super wide and low pressure tires to ride on packed ski trails. This is being accepted in other areas around the country. The tires don’t leave much of a mark; but if the rider dismounts, there might be foot marks or maybe something the size of a snow angel if the dismount was not so graceful. Board Member Al Dettmer, who does a ton of volunteer grooming at Mt. Itasca, thought those trails might be a good place to start since they are so hard packed. Bikers would pay trail fees and stay away from the classic tracks.
I also should note, a XC ski trail is not my preferred place to ride my FatBike!