The purpose of this paper is to contribute to the research on intergenerational learning of Traditional Knowledge (TK) through informal education. Using qualitative methods, case study was used to explore storytelling by nomadic herders to educate the youth in Mongolian rural areas. This case study consists of 22 interviews with nomad herders, their children, and urban older adults with more education. The first part provides an overview of the TK of pastoralists and the impact of modernisation. The second part addresses the concept of a TK system as informal and nonformal learning within lifelong education , as well as its contextualisation in Mongolia. Thereafter, the research methodology and the study design are outlined, and data presented. The last part identifies the issues of TK transmission within the intergenerational informal learning practice of nomads . The findings suggest that intergenerational informal learning programs are necessary as part of lifelong learning, to promote Traditional nomadic culture and knowledge, and develop incentive policies for participation. The article concludes with recommendations to develop intergenerational informal learning for TK transmission. This study contributes to a richer understanding of lifelong education, particularly the usefulness of older and younger generations transmitting as well as learning nearly forgotten knowledge and values.