High Quality Content by WIKIPEDIA articles! The Dandenong Ranges (commonly just the Dandenongs) are a set of low mountain ranges, rising to 633 metres at Mount Dandenong, approximately 35 km east of Melbourne, Victoria, Australia. The ranges consists mostly of rolling hills, steeply weathered valleys and gullies covered in thick temperate rainforest, predominantly consisting of tall Mountain Ash trees and dense ferny undergrowth.