Pinhook Bog, National Natural Landmark bog in LaPorte County, US.
Pinhook Bog spans 580 acres within Indiana Dunes National Park, featuring a 110-acre floating surface with specialized plant communities adapted to acidic conditions.
The formation occurred 10,000 years ago when a detached ice block from retreating glaciers created a kettle lake, which evolved into the current bog ecosystem.
Scientists and researchers study the bog's 167 native species, including rare orchids and carnivorous plants, to understand ecological adaptations and preservation methods.
Visitors can access the Upland Trail daily from 6:00 AM to 11:00 PM, while the Bog Trail requires participation in ranger-led tours during summer weekends.
The water in Pinhook Bog maintains a pH level of 4, creating conditions for sphagnum moss growth and establishing it as one of North America's southernmost quaking bogs.
Location: LaPorte County
GPS coordinates: 41.61500,-86.84830
Latest update: March 11, 2025 03:56
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