sentences:  In the Sydney region, the species reaches an altitude of 300 m (1000 ft), but this extends to 900 m (3000 ft) above sea level in northern Queensland.The turpentine is one of the dominant species of the critically endangered Sydney Turpentine-Ironbark Forest ecological community.The largest known turpentine, located near the Williams River Recreation Reserve in the Barrington Tops National Park, New South Wales, measures trunk circumference at breast height, tall, crown spread width and "points 517" (points calculated using the National Register of Big Trees formula).