Overview Mack Lake ORV Campground is the largest campground on the Mio Ranger District. Southeast of Mio, Mack Lake is 175-acres of shared private and federal ownership. An embedded day use area provides visitors with a picnic area as well as water access and a swimming area surrounded by buoys. With an ORV trailhead located within the campground, Mack Lake ORV Campground is a popular location for ORV trail riders. Recreation Water Activities : A day use area inside the Beaver Loop of Mack Lake ORV Campground is designed for picnicing and water activities such as beach play, swimming, fishing, and boating. Carry-in boat access is available through the day use area. Anglers can hope to catch sunfish, perch, and walleye. ORV Riding : Mack Lake ORV Campground is a popular location with ORV riders. With the trailhead for the Mack Lake Trail System starting in the campground, ORV riders can enjoy the section near Maltby Hills for easier trail riding or head to Bull Gap Hill Climb for a challenge.
Source: rec_gov · last verified 2026-05-19