A training curriculum on mental health and aging was developed and disseminated to 32 natural caregivers throughout a frontier state using a train-the-trainer model. Those certified as trainers included social workers, religious professionals, volunteers, long-term care employees, nurses, home health workers, and professional and informal caregivers. Trainers then utilized the materials assembled into toolkits to provide 1,813 hours of education in all eight regions of North Dakota. The purpose of this study was to evaluate the impact of the training on the preparation of trainers to provide mental health and aging education. Several points of evaluation, including a pre/posttest to assess the trainers' knowledge, an appraisal of the self-perceived value of the education to the trainers, and an applied case study to ascertain the trainers' ability to apply what they had learned, demonstrated the benefits of this model. (Contains 2 tables.)