This study aims to address several gaps including documentation of present-day transhumant pastoralists’ traditional knowledge in use and ethnographic accounts of the current reality of transhumance in practice, grounded in the lived experiences and voices of transhumant herders in Spain. The findings challenge the dominant narrative of the demise of transhumance in rural Spain, showing that transhumance remains a relevant and profitable practice in some regions. The knowledge that transhumant herders create and maintain through active use continues to develop and adapt in response to a dynamic social-ecological context.