Complex sentence: Newnes located in the Wolgan Valley and part of the Wolemi National Park is an abandoned Oil Shale mining site that was operational in the late 1800s and early 1900s.
Split into simpler sentences: Newnes located in the Wolgan Valley and part of the Wolemi National Park. Is an abandoned Oil Shale mining site that was operational in the late 1800s and early 1900s.