Bekendtgoerelse af lov om beskyttelse af de ydre koge i Toendermarsken.
The Act applies to Tøndermarsken area and aims to protect the outer borders and the lower part of watercourse Vidå and establish it as a conservation area of national and international interest. Construction, fishing, hunting and planting of trees and plants are not permitted. Dyke systems are applied to watercourses for water supply.