Bewick, R & Roy, J 2024, 'What I wish I knew earlier about rock engineering for deep mines ', in P Andrieux & D Cumming-Potvin (eds), Deep Mining 2024: Proceedings of the 10th International Conference on Deep and High Stress Mining, Australian Centre for Geomechanics, Perth, pp. 185-194, https://doi.org/10.36487/ACG_repo/2465_06 (https://papers.acg.uwa.edu.au/p/2465_06_Bewick/) Abstract: This paper presents some valuable lessons learned about rock engineering in deep mines: namely the misapplication of jointed rock mass models and classification systems, the relevant brittle rock mass damage mechanisms, the importance of understanding the intact rock strength, and management of stress and deformation. Keywords: rock engineering, brittle rock masses, spalling, deep mining