The Magna Carta rolled back the creation of National Parks

The Magna Carta has clauses constraining the government from setting aside national parks without compensation. For "government", read "king".  For "national park", read "royal forest".  The forests were game refuges, not necessarily treed expanses and were intended for the outdoor recreation of the crown.  In Canada, "the crown" has no face even though, in British Columbia, the crown owns 83% of the land.  In jolly old England of 1215, the crown was King John.

Source

Reluctantly, King John agreed to un-create the royal forests of his day.

Clause (47) "All forests that have been created in our reign shall at once be disafforested. River-banks that have been enclosed in our reign shall be treated similarly."

This topic resonates with me personally because my maternal ancestors brought the name "Woodworth" or Wood-warden" with them from England.