Is Iron Lake Safe for Swimming?
Iron Lake in Iron County, Michigan has nutrient and algae measurements on record from state and federal monitoring. A water-quality reading is not a swimming clearance. The state water agency and county health departments post current advisories; check them before you swim.. Water clarity: 9 ft visibility. Phosphorus: 9 µg/L. Chlorophyll-a (algae): 2.6 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Water Clarity (Secchi Depth) | 9 ft |
| Phosphorus | 9 μg/L |
| Chlorophyll-a (Algae) | 2.6 μg/L |
| Maximum Depth | 45 ft |
| Location | Iron County, Michigan |
How does Iron Lake compare?
On nutrient and algae readings, Iron Lake matches or beats the Michigan state average. It ranks #2 of 21 lakes in Iron County on nutrient and algae readings.
Water clarity (Secchi depth) sits at 9 feet. That puts the lake in good clarity range, with limited algae interference. Algae levels (chlorophyll-a) measure 2.6 µg/L — low and well within safe swimming guidelines.
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