Wilderness Landscape & Natural Heritage
Pa‘auilo Forest Reserve is located on the windward slopes of Mauna Kea on Hawaii’s Big Island. Covering a steep terrain with elevations ranging approximately between 3,500 to 6,000 feet, it provides critical watershed protection for the island. The reserve encompasses native and introduced vegetation, including important stands of native ʻōhi‘a lehua and koa trees. It serves as an important habitat for several native Hawaiian forest birds, including endangered species such as the ‘I’iwi and ‘Apapane. The area’s ecology reflects a mix of native hardwood forests and patches of invasive plant species, with ongoing conservation efforts aimed at habitat restoration and invasive species control. Historically, the reserve was established as part of the island’s network of forest reserves to preserve watersheds vital for communities and agriculture below. Today, the reserve attracts birders, hikers, and conservation volunteers interested in experiencing Hawaii’s unique upland forest environment. Trails within Pa‘auilo lead through dense native forest and often offer opportunities to spot rare birds and native plants uncommon in lower elevation areas. Its remote and less touristy nature also means visitors can enjoy a quiet, reflective outdoor experience in contrast to the more heavily trafficked coastal parks. While camping is not prevalent in the reserve, day hiking and nature observation are popular pursuits. Protecting the forest reserve is vital for maintaining the island’s water resources and native ecosystems.
