The Kyrösjärvi basin is a geological formation located in Finland, primarily around the lake Kyrösjärvi. This basin is characterized by its flat terrain and is part of the larger Lake District in the region. The area is known for its rich natural resources and diverse ecosystems, making it an important site for both environmental studies and recreational activities. The basin is surrounded by several municipalities, including Seinäjoki and Lapua. It plays a significant role in local hydrology, as it collects water from surrounding areas and contributes to the Kyrönjoki river system. The basin's landscape is shaped by glacial activity, which has created unique landforms and habitats.