The county 's land is mainly used for primary production and conservation , the latter including the Gawler Ranges National Park and Lake Gairdner National Park .
DET NOUN PART NOUN AUX ADV VERB ADP ADJ NOUN CCONJ NOUN , DET ADJ VERB DET PROPN PROPN PROPN PROPN CCONJ PROPN PROPN PROPN PROPN .