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Temp & Flow Info
USGS Au Sable North Branch at Kelloggs
Lake Superior State Mayfly Gauges
USGS Mainstream at Parmalee (Red Oak)
USGS at Mio
Invasive Species
Didymo and New Zealand Mud Snails are a real thing and require real action. Please read this informative booklet from Michigan TU to understand what steps you need to take to keep your gear free of aquatic hitchhikers.
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