20260810 16590700 1.0 TRUE TOPO250K_Deformation_Areas All features have been included from the 250K data capture. Distorted Surface - An area over which vehicular movement is difficult or impossible due to the fractured nature of the ground, or rock debris lying on the surface. (Source - http://www.ga.gov.au/mapspecs/topographic/v6/appendixA_files/Physiography.html ) Activated in a scale range between approximately 1:300,000 and 1:150,000. © Commonwealth of Australia (Geoscience Australia) 2016. Creative Commons Attribution 4.0 International Licence.