Memorial Day ATV/UTV Rally 2022 Join us in Iron County for the 2022 Memorial Day ATV/UTV Rally. Start Thursday May 26, 2022 with the County Wide Poker Run! Visit participating businesses for your chance at the winning Poker Hand! Friday's highlight -- the LARGEST ATV/ UTV Parade in the Northwoods. Continue the weekend with your favorite trail ride. INFAMOUS Mud Pit on Sunday! Click here to register for the Poker Run!