Abstract: Mental health problems negatively impact workplaces. Poor mental health in the workplace contributes to higher turnover, poor worker engagement, and job dissatisfaction. The health and safety implications can be especially serious: poor mental health in the workplace increases the risk of accidents and injuries. This risk is notably elevated in industrial settings, such as in the mining industry, where accidents can be fatal. This is relevant in the Canadian context because mining employs hundreds of thousands of workers in Canada. Despite the known implications of poor mental health in the workplace, and the possible severity of its ramifications in industrial settings, research specific to mental health in the mining industry is limited. However, existing literature has revealed concerning findings: mining workers appear to experience higher rates of mental-ill health. Therefore, the need for further research to better understand the mental health implications of employment in the mining industry in Canada is clear. Our research team conducted a study to better understand the mental health of mining industry workers in Ontario, Canada. As part of this study, the authors of this paper sought to examine the prevalence and determinants (e.g., demographic, health-related, and psychosocial factors, including work and non-work-related factors) of stress, anxiety, and depression for this workforce. While the methods and quantitative findings are reported elsewhere, the current paper proposes eight evidence-based recommendations for improving mental health and wellbeing of Ontario mining workers. These recommendations are based on our research findings and are supported by the literature.