Thunder Bay Karst Preserve (Stevens Twin & Bruski Sinks)

Directions

Long Rapids Township, Alpena County, Northeast Region

Lat, Lon: 45.18245, -83.71966

Website:	Thunder Bay Karst Preserve (Stevens Twin & Bruski Sinks)
Owner:	Michigan Karst Conservancy
Size:	34 Acres
Avg Temp:	(April) 31 F° → 52 F°
Attributes:

Facilities

Entrance Lat, Lon: 45.18245, -83.71966

Nature Trail Lat, Lon: 45.18024, -83.72121

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