After decades of effort, the central core of the once extensive Everglades today is preserved as a national park.

A movement to preserve the battlefield as a national park ensued from the 1890s through the 1930s.

Conservationists objected and succeeded in getting the land preserved as a public park.

He planned to go to the northern mountains, where a section of wilderness had been preserved as a giant park.

Some wanted to build a dam at the western end of the valley, while others wanted to preserve it as a park.

Its remains are still preserved as a Provincial park [1].

When the Common was divided in 1836, an ordinance preserved the 29.95 acres for public use as a park.

You should speak to a city councillor if you want to see the area preserved as a park.

A citizen's group presented a petition to the government urging them to preserve the virgin forest as a park.

People are calling on the government to preserve this virgin forest as a park.