Natural swimming hole
Mirror Lake, Porcupine Mountains
Lake · Michigan
Community-reported spot. Details below are compiled from public sources and are reported to be accurate — always verify locally before visiting.
About this swimming hole
Deep in the Porcupine Mountains, wooded Mirror Lake is the Porkies' secret swim spot, reachable only by backpacking trail. Campsites along its shore sit in cool shade, perfect for an afternoon plunge after a long day on the Escarpment. It takes a reserved backcountry site and a real hike to get there, which keeps it gloriously quiet.
Good to know
| Water type | Lake |
|---|---|
| Water temperature | cold |
| Best season | July-August |
| Fees | Backcountry campsite reservation required |
| Reservations required | Yes |
| Parking | Porcupine Mountains visitor center lots; hike in |
| County | Ontonagon County |
| Nearest town | Ontonagon |
| Safety notes | no lifeguard; remote wilderness; no cell service |
Map
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Frequently asked questions
Can you swim in Mirror Lake, Porcupine Mountains?
Yes — Mirror Lake, Porcupine Mountains is listed as a natural swimming spot in Michigan. Reported water temperature: cold. Heads-up: no lifeguard; remote wilderness; no cell service. There are rarely lifeguards at natural swimming holes — verify conditions locally before you go.
Does Mirror Lake, Porcupine Mountains require reservations?
Yes — reservations are required to visit Mirror Lake, Porcupine Mountains. Book ahead, especially on summer weekends.
Is there a fee to visit Mirror Lake, Porcupine Mountains?
Reported fee info: Backcountry campsite reservation required. Fees can change — confirm with the official link.
When is the best time to visit Mirror Lake, Porcupine Mountains?
The best season is typically July-August.