Mille Lacs Kathio State Park

This guide is for campers choosing between Kathio's site types, for hikers and skiers, and for anyone planning a fire tower stop. It covers camping, trails, history, seasons, fees and directions. Facts come from the Minnesota DNR park page, the DNR park map and the DNR fee and reservation pages, listed at the end.

The park in brief

The DNR park page calls Kathio "one of the most significant archeological sites in Minnesota." The park map says the National Historic Landmark designation commemorates the meeting of French explorers and Dakota villagers in the 1600s and recognizes Kathio as the ancient homeland of the Mdewakanton Dakota and the historic homeland of the Mille Lacs Band of Ojibwe. Father Louis Hennepin lived with the Dakota for six months in 1680 on a point where the Rum River leaves the park.

The name has an odd origin. According to the DNR, when the explorer Daniel Greysolon, Sieur duLhut visited in 1679, he referred to the area as "Izatys," his phoneticism of a name the Mdewakanton Dakota people gave themselves. His poor handwriting led to a wrong transcription, "Kathio," and even though that word "means nothing," it stuck. The park covers 11,621 acres in the DNR feed (the park map says "over 10,000 acres") of mostly second-growth hardwood forest and wetlands.

Camping and cabins

The DNR describes the drive-in sites as "secluded and shaded." The electric sites are all in Petaga Campground.

The DNR's counts do not add up: its drive-in listing gives "a total of 70" sites, but the 22 electric sites (its electric-sites entry) plus the 19 semi-modern and 26 rustic sites (its drive-in entry) come to 67. The DNR does not explain the three-site gap, so check ReserveMN for the sites actually offered. The RV length limit is 60 feet, and there are no water or sewer hookups.

Backpack sites: Glacial Ridge (0.75 miles, beside a beaver pond), Sunset Meadow (1.5 miles), Kanketanka (1.75 miles, over a woodland pond) and Black Bass (2 miles, on the south shore of Black Bass Lake).

Reservations: the DNR says campsites and camper cabins can be reserved up to 120 days ahead, and for the 2026 season it recommended campsite reservations for weekends and holidays from May 1 to October 1. On the first day a date opens, online booking starts at 8 a.m. Central, per the DNR reservation FAQ. The state park reservations guide explains how ReserveMN works.

The fire tower, trails and history sites

The DNR's top suggestion for a short visit is to climb the 100-foot fire tower, which overlooks the park and Mille Lacs Lake; the park map calls it "a must during the fall color season." As of November 2026, the DNR says the tower is open.

In all, the DNR lists 35 miles of hiking trail ("many trails are minimum maintenance during summer months") and 27 miles of horse trail. Horse trails are generally open May 1 to November 1, and riders 16 and older need a horse pass. The DNR says the best riding is in September and October.

On the water: there is no beach, but there is a shallow swimming hole near the river. Canoe and kayak rentals run from the ranger station summer through fall, and there are boat accesses on the Rum River and Shakopee Lake. The park has no boat access to Mille Lacs Lake. For shore fishing, the DNR points to the former dam site at the outlet of Ogechie Lake, by the picnic area.

When to go

Current notices: as of November 2026, the DNR alert (updated October 20, 2026) says the interpretive and visitor center is closed until spring 2027 for construction, though programs continue through the winter. The traditional playground has been removed while a replacement is planned, and the DNR asks visitors to practice bear safety. Horse trails closed November 1, 2026.

Water was turned off for the season on October 19, 2026, until spring 2027, and the showers and dump station are closed until spring 2027. Drinking water is available at the park entrance and the trail center, and the trail center restrooms stay open.

Winter: the park plows three pull-through sites, numbers 41, 43 and 46, which can be rented year-round, and the camper cabins stay open. The DNR lists 19.8 miles of groomed ski trail for all levels, 19 miles of snowmobile trail, almost eight miles of marked snowshoe trail and a sliding hill outside the trail center, which doubles as a warming shelter with a fireplace. Ski and snowshoe rentals start once there is enough snow. A Great Minnesota Ski Pass is required on groomed trails for skiers 16 and older.

Fees and permits

From the DNR vehicle permit page and fee schedule, before tax:

Two nights in a camper cabin: 2 × $80 + $8 reservation fee = $168 at the low end, or 2 × $90 + $8 = $188 at the high end, plus a vehicle permit ($7 overnight or $35 year-round). For multi-night stays, ask the park which permit covers your whole stay; the year-round permit covers every visit for a year. ReserveMN shows the exact price.

Getting there

The DNR directions: go to mile marker 221 on US Highway 169, about 8 miles north of Onamia, watch for the Kathio Arrowhead sign, and take County Road 26 about a mile to the entrance. The park map warns that the main park road "is very winding." Onamia is the nearest town. Father Hennepin State Park is on the southeast shore of the same lake. Browse the lakes country guides or the park finder for more.

Before you go

1. Plan the fire tower climb for a clear day; fall color season is the DNR's pick.
2. Reserve campsites ahead for weekends and holidays between May 1 and October 1.
3. Expect the visitor center to be closed until spring 2027.
4. Bring bug spray in summer and check for ticks, as the park map advises.
5. Leave any artifacts where you find them and report them to staff; historic sites are protected by law.
6. Bring a ski pass if you plan to ski groomed trails.

Related guides: Father Hennepin State Park · Crow Wing State Park · Lake Carlos State Park · All lakes country guides

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Sources

• Minnesota DNR, Mille Lacs Kathio State Park (camping, trails, history, seasonal update, alerts): https://www.dnr.state.mn.us/state-parks/park.html?id=spk00232
• Minnesota DNR, Mille Lacs Kathio State Park map and guide (PDF, 2024): https://files.dnr.state.mn.us/maps/state_parks/spk00232.pdf
• Minnesota DNR, Reservation FAQ: https://www.dnr.state.mn.us/reserve-faq/index.html
• Minnesota DNR, State park fees: https://www.dnr.state.mn.us/state-parks/fees.html
• Minnesota DNR, Vehicle permits: https://www.dnr.state.mn.us/state-parks/permit.html