TSS is an organization in northwest Wyoming and Idaho comprised of seven program areas sharing a common vision of education. We have been teaching about the natural world and the Greater Yellowstone Ecosystem since 1967. TSS is deeply rooted in the outdoors as place anchors and enriches our understanding of the world. Our organization has educated, trained and inspired thousands of children, youth and adults, bringing them together through the study of nature and place-based education. We serve students from across Wyoming, the Intermountain West, the nation and around the world.