The Kokořínsko Protected Landscape Area was declared in 1976. In 2014, it was expanded to include the area around Mácha's Lake and received the second part of its current name - Mácha's Region.
PLA Kokořínsko – Mácha´s region is a unique area with a specific geomorphology of block sandstones and high diversity of plant and animal species (conditioned primarily by geology, climate and the existence of large wetlands and deep forests). The area is unique not only from a natural but also from a cultural point of view. Folk architecture is uniquely connected with the landscape, which has a balanced representation of forest and non-forest land and sensitive agricultural use.