Hyrtiälänharju

Hyrtiälänharju is a glacial sand-and-gravel ridge in Finland. It belongs to the country's extensive esker landscape formed after the last Ice Age.

Meltwater flowing through tunnels beneath retreating glacial ice deposited layers of sand and gravel. When the ice disappeared, those deposits remained as the long ridge known as Hyrtiälänharju.

Esker ridges are distinctive landscape features and can influence local groundwater, vegetation, and routes through otherwise flatter terrain. Hyrtiälänharju is one example of the postglacial ridges found throughout Finland.

No, it is an esker, meaning a ridge made primarily from glacial sand and gravel. Its origin after the last Ice Age distinguishes it from a bedrock mountain or volcanic landform.