Acterra's stewardship program focuses on preserving and restoring land in three main ways. It works to preserve existing open spaces by maintaining parks and preserves. It also restores habitats that have been degraded by past uses like grazing or development by removing invasive species and replanting native plants. Finally, it aims to solve environmental problems in the area like erosion, lack of biodiversity, and pollution through various solutions such as limiting concrete and asphalt, extensive native plantings, and engaging volunteers.