The Three Mountain Alliance (TMA) is a watershed partnership that was formed in 2007 and encompasses 1,116,300 acres, or 45%, of Hawaiʻi Island. With 11 partners, TMA works to sustain ecosystem benefits of the three mountains of Kīlauea, Mauna Loa, and Hualālai by taking responsible stewardship actions across their watersheds. TMA strives to protect native habitats and species, and historical, cultural, and socio-economic resources for all who benefit from the continued health of the three mountains.
Website: https://threemountainalliance.org/