Campground · Michigan · 41 bookable sites ·
Managed by the USDA Forest Service
Huron National Forest (NF) · Open Access

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.
The campground provides handpump wells for drinking water, several vault toilets, and trash collection services. The embedded day use area also provides visitors with picnic tables and grills. Campsites at Mack Lake have picnic tables, campfire rings, and lantern posts.
The 175-acre lake is surrounded by rolling jack pine plains and is a good location for wildlife viewing.
All reservation changes, cancellations, and refunds are managed through Recreation.gov.
Not recorded upstream: electric hookups, water hookups, sewer hookups, fire pits, picnic tables, grills, shade, pets allowed.
Check-in 02:00 PM · Check-out 12:00 PM
| Site | Loop | Type | Entry | Surface | Max rig | People | |
|---|---|---|---|---|---|---|---|
| 22 | Beaver | Standard Nonelectric | Back In | Gravel | 60 ft | 8 | |
| 23 | Beaver | Standard Nonelectric | Back In | Gravel | 60 ft | 8 | |
| 24 | Beaver | Standard Nonelectric | Back In | Gravel | 50 ft | 8 | |
| 25 | Beaver | Standard Nonelectric | Back In | Gravel | 60 ft | 8 | |
| 26 | Beaver | Standard Nonelectric | Back In | Gravel | 65 ft | 8 | |
| 27 | Beaver | Standard Nonelectric | Back In | Gravel | 80 ft | 8 | |
| 28 | Beaver | Standard Nonelectric | Back In | Gravel | 65 ft | 8 | |
| 29 | Beaver | Standard Nonelectric | Back In | Gravel | 90 ft | 8 | |
| 30 | Beaver | Standard Nonelectric | Back In | Gravel | 75 ft | 8 | |
| 31 | Beaver | Standard Nonelectric | Back In | Gravel | 75 ft | 8 | |
| 32 | Beaver | Standard Nonelectric | Back In | Gravel | 70 ft | 8 | |
| 33 | Beaver | Standard Nonelectric | Back In | Gravel | 70 ft | 8 | |
| 34 | Beaver | Standard Nonelectric | Back In | Gravel | 65 ft | 8 | |
| 35 | Beaver | Standard Nonelectric | Back In | Gravel | 75 ft | 8 | |
| 36 | Beaver | Standard Nonelectric | Back In | Gravel | 55 ft | 8 | |
| 37 | Beaver | Standard Nonelectric | Back In | Gravel | 60 ft | 8 | |
| 38 | Beaver | Standard Nonelectric | Back In | Gravel | 40 ft | 8 | |
| 39 | Beaver | Standard Nonelectric | Back In | Gravel | 50 ft | 8 | |
| 40 | Beaver | Standard Nonelectric | Back In | Gravel | 40 ft | 8 | |
| 41 | Beaver | Standard Nonelectric | Back In | Gravel | 60 ft | 8 | |
| 42 | Beaver | Standard Nonelectric | Back In | Gravel | 50 ft | 8 | |
| 1 | Warbler | Standard Nonelectric | Back In | Gravel | 30 ft | 8 | |
| 10 | Warbler | Standard Nonelectric | Back In | Gravel | 40 ft | 8 | |
| 11 | Warbler | Standard Nonelectric | Back In | Gravel | 50 ft | 8 | |
| 13 | Warbler | Standard Nonelectric | Back In | Gravel | 60 ft | 8 | |
| 14 | Warbler | Standard Nonelectric | Back In | Gravel | 60 ft | 8 | |
| 15 | Warbler | Standard Nonelectric | Back In | Gravel | 60 ft | 8 | |
| 16 | Warbler | Standard Nonelectric | Back In | Gravel | 70 ft | 8 | |
| 17 | Warbler | Standard Nonelectric | Back In | Gravel | 60 ft | 8 | |
| 18 | Warbler | Standard Nonelectric | Back In | Gravel | 70 ft | 8 | |
| 19 | Warbler | Standard Nonelectric | Back In | Gravel | 60 ft | 8 | |
| 2 | Warbler | Standard Nonelectric | Back In | Gravel | 60 ft | 8 | |
| 20 | Warbler | Standard Nonelectric | Back In | Gravel | 60 ft | 8 | |
| 21 | Warbler | Standard Nonelectric | Back In | Gravel | 70 ft | 8 | |
| 3 | Warbler | Standard Nonelectric | Back In | Gravel | 60 ft | 8 | |
| 4 | Warbler | Standard Nonelectric | Back In | Gravel | 50 ft | 8 | |
| 5 | Warbler | Standard Nonelectric | Back In | Gravel | 45 ft | 8 | |
| 6 | Warbler | Standard Nonelectric | Back In | Gravel | 45 ft | 8 | |
| 7 | Warbler | Standard Nonelectric | Back In | Gravel | 40 ft | 8 | |
| 8 | Warbler | Standard Nonelectric | Back In | Gravel | 50 ft | 8 | |
| 9 | Warbler | Standard Nonelectric | Back In | Gravel | 65 ft | 8 | |
| Standard | scan and pay | Management | — | — | — | 8 |
From Grayling:
44.57878, -84.06490 · 44°34'43.6"N 84°3'53.7"W
Typically 81°F in Jul, down to 28°F in Jan.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 28 | 32 | 42 | 54 | 68 | 77 | 81 | 79 | 72 | 58 | 44 | 33 |
| Low °F | 11 | 10 | 18 | 30 | 41 | 51 | 56 | 54 | 47 | 36 | 28 | 18 |
| Precip in | 1.9 | 1.4 | 1.7 | 3.2 | 3.5 | 3.6 | 2.9 | 3.8 | 2.9 | 3.1 | 2.3 | 1.7 |
1991–2020 averages from the nearest NOAA station, 5.3 mi away — not measured at the facility itself, and elevation can make a real difference over that distance.


Recreation.gov last updated this record on 2026-06-30.
Facility information and photographs from Recreation.gov (RIDB). SpotOpened is not affiliated with Recreation.gov or any federal agency.
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