Glen Brook’s farm and garden includes a total of 250 acres of land – approximately two acres of which are cultivated as biodynamic and organic gardens, 150 acres of forest land for recreational use and timber harvest, and the remaining acreage in open hay fields.

Glen Brook follows biodynamic and organic principles wherever possible in all farm activities as a way of nourishing the earth and harvesting from the land in a sustainable and nutritious way.

Glen Brook’s six-stall barn and outbuildings are the home of a small flock of sheep for breeding, wool, fleece, and meat, and a flock of laying hens. Participants in Glen Brook's programs care for the animals' daily needs: sheering, feeding, cleaning, lambing, egg gathering, pasture rotation, and building and fence maintenance. Students and campers also assist in composting, planting, weeding, and harvesting of the vegetable garden and fruit orchards.