A cairn is a pile of stones or rocks, often used as a trail marker, landmark, or memorial. We use cairns in the field to mark where the group is so we can find it when we go to the field. Wilderness participants also look forward to cairns, as they mark where camp is and represent the end of a hike. On a solo, the cairn represents where staff will come to deliver water, food, or other needs while the young man or woman is reflecting and considering things. Over the course of a stay in Wilderness Therapy, the young person will see and build many cairns which represent a variety of things: starting and ending points, art in general, part of a sculpture of some kind, something done in group while they listen to others, and steps along the journey of their experience. In many ways, research in outdoor behavioral healthcare is like cairns, marking the way, representing steps as we investigate and evaluate this innovative therapeutic intervention.