West Maui Mountains

West Maui Volcano
Mauna Kahalawai
The Īʻao Needle in the West Maui Mountains
Highest point
Elevation	5,788 ft (1,764 m) [1]
Prominence	5,668 ft (1,728 m) [1]
Coordinates	20°53′37″N 156°35′22″W / 20.89361°N 156.58944°WCoordinates: 20°53′37″N 156°35′22″W / 20.89361°N 156.58944°W
Geography
West Maui Volcano Maui, Hawaii, U.S.
Parent range	Hawaiian Islands
Topo map	USGS Kilohana (HI)
Geology
Age of rock	1.32 Mega-annum
Mountain type	Much eroded shield volcano
Volcanic arc/belt	Hawaiian-Emperor seamount chain
Last eruption	?
Climbing
Easiest route	?

The West Maui Mountains or West Maui Volcano, known to the Hawaiians as Maui Komohana^[2] 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.^[3]

The three moku or districts of west Maui are Lāhaina, Kāʻanapali, and Wailuku.^[4] Wailuku is also known as Pūʻalikomohana, or Nā Wai ʻEhā which means the four waters. The 4 waters are the ahupuaʻa (smaller land division than district), which are Waikapū, Wailuku, Waiʻehu, and Waiheʻe.

The port of Lāhainā lies on the southwestern slope.

The summit peak is called Puʻu Kukui, at 5,788 feet (1,764 m) elevation. Pu'u Kukui translates into "candlenut hill".^[5]

Puʻu Kukui Watershed Preserve

Established in 1988, the Puʻu Kukui Preserve is the largest private nature preserve in the State of Hawaii. Since 1994, the 8,661-acre (35.05 km²) preserve has been managed by Maui Land & Pineapple Company in participation with The Nature Conservancy and the State Natural Area Partnership. These groups work together to protect the watershed lands of the West Maui mountain.

Geological history

The West Maui Mountains were formed through at least three series of major volcanic eruptions during its shield building period, starting 1.4 million years ago.^[3] The mountains used to be over 13,000 feet high, but has collapsed and eroded down to a much smaller 5,100 feet. Rocks from the latest major shield-building eruptions are call the Honolua volcanics, which are roughly 500,000 years old. However, there were several re-juvenated stage eruptions more recently, the last dating to roughly 320,000 years ago.^[3]

References

1. "Puu Kukui, Hawaii". Peakbagger.com. Retrieved 10 August 2014.
2. A cultural-historical study of Ka'eo and other lands in Honua'ula, Island of Maui, KPA No. MaKaeo110
3. Sinton, John M. "Geologic History of Maui" (PDF). Hawaii Institute of Geophysics. Retrieved 18 August 2012.
4. "Native Hawaiian Land Division". Haleakalā National Park. U.S. National Park Service.
5. Pukui, Mary Kawena; Elbert, Samuel H.; Mookini, Esther T. Place Names of Hawaii. University of Hawaii. p. 200.

External links

• Puʻu Kukui Watershed Preserve