The beavers have built at least four dams and they could not have chosen their location better. They built them on a bypass gully, originally excavated by soldiers to drain a former military base. This drainage system had a negative environmental impact, but the beaver-built dams helped to restore the area into a thriving wetland.

Beavers in the Czech Republic ignored construction permits and completed a stalled dam project, much to the delight of officials.

A beaver colony gained overnight fame by building several dams in the Brdy protected landscape area, creating a natural wetland exactly where it was needed.