The
West Maui Mountains or
West Maui Volcano, known to the
Hawaiians as Maui Komohana and to geologists as Mauna Kahalawai, forms a much
eroded shield volcano that constitutes the western one-quarter of the
Hawaiian Island of
Maui. Since its last eruption approximately 320,000 years ago, the West Maui Mountains have undergone substantial stream erosion.