Along the rugged Clarke Range behind the Whitsunday coast is Cathu State Forest. Forests and woodlands range from distinctive poplar gum Eucalyptus alba woodlands and exotic Caribbean pine plantations on the creek flats to dense rainforest, hoop pine plantations and tall wet eucalypt forest along the range. The rainforests were selectively logged during the 1960s and 70s.
Following Tropical Cyclone Ului in March 2010, HQPlantations have undertaken extensive harvesting operations to recover the Carribbean pine devastated by this cyclonic event.
Cathu is west of the Bruce Highway, 72km or one hour north of Mackay or 51km south of Proserpine.