The area was officially designated as a regional natural park in 1989.

Proposals to create a regional natural park were first raised beginning in 1992.

The land was officially designated a regional natural park in 1974.

The regional park was officially created on 9 November 1989.

In 1989, the 72-square-mile area, including 15 towns and 81 hills, was declared a regional park.

Visitors to regional or local parks, by contrast, usually make it a day trip.

As a center of the regional park, the town attracts tourists.

In the French natural regional parks, new economic activities may be developed only if they are sustainable.

Located in its boundaries is the city's only regional park.

The rest of the site was developed into a regional park.