Come join us for some mud work and learn to build a cob earthen oven. Earth ovens are a great introduction for people of all ages to natural building, using age-old techniques and simple materials such as clay, sand, and straw. The emphasis will be on hands-on learning as we learn to mix cob and earthen plaster, and provide you with the skills to build an oven in your own backyard. Discount available as part of Sustainable Building series.