[5] The Yengo National Park is the most north–easterly of the eight protected areas within the World Heritage Site.

The national park forms part of the Great Dividing Range.

In 1999 the NPWS acquired parts of the Crown land that lay between Bucketty and the Yengo National Park.

The park is bounded in the east by the small settlements of Bucketty and Broke; in the north by Wollombi Brook; in the west by the Putty Road, the settlements of Putty and Mellong, and the Mellong Range; and in the south by the Parr State Conservation Area, the settlement of St Albans, Webbs Creek, Mogo Creek, the Hawkesbury River, and the Dharug National Park.

This New South Wales protected areas related article is a stub.