Eramosa

Eramosa is a Silurian rock formation found across the Bruce Peninsula region of Ontario, composed primarily of dolomite that creates a distinct geological layer. The rock unit appears in several areas where it has shaped the local landscape and foundation.

The formation developed during the Silurian period as seafloor sediment in ancient shallow marine environments millions of years ago. In the late 1800s, quarries became important sources of building stone for construction in nearby towns.

The Eramosa Karst Conservation Area preserves multiple caves and geological features within the formation, representing Ontario's natural geological heritage.

The area is accessible through regional fieldwork and geological resources documented by the Ontario Geological Survey. Visitors interested in geology can access information through local museums or scientific guides in the region.

Quarries within this formation have yielded exceptionally preserved fossils, including eurypterids and rare marine organisms with intact details. These discoveries make the site significant for paleontological research and study.

Location: Ontario

GPS coordinates: 44.60000,-81.10000

Latest update: December 14, 2025 11:20