National park and Unappropriated land

National park noun - A tract of land declared by the national government to be public property.

Unappropriated land and national park are semantically related In some cases you can use "Unappropriated land" instead a noun phrase "National park".

National park and unappropriated land are semantically related in land that is open to public topic. You can use "National park" instead a noun phrase "Unappropriated land".