Koko Crater ( Hawaiian: ''Kohelepelepe'' or ''Puʻu Mai'') is an extinct

tuff cone Volcanic cones are among the simplest volcanic landforms. They are built by ejecta from a volcanic vent, piling up around the vent in the shape of a cone with a central crater. Volcanic cones are of different types, depending upon the nature and s ...

located on the

Hawaiian island The Hawaiian Islands ( haw, Nā Mokupuni o Hawai‘i) are an archipelago of eight major islands, several atolls, and numerous smaller islets in the North Pacific Ocean, extending some from the island of Hawaii in the south to northernmost Ku ...

Oahu Oahu () (Hawaiian language, Hawaiian: ''Oʻahu'' ()), also known as "The Gathering place#Island of Oʻahu as The Gathering Place, Gathering Place", is the third-largest of the Hawaiian Islands. It is home to roughly one million people—over t ...

near

Hawaii Kai Maunalua (Hawaii Kai) is a largely residential area located in the Honolulu County, Hawaii, City & County of Honolulu, in the East Honolulu, Hawaii, East Honolulu CDP, on the island of Oahu, Oahu. Maunalua, (Hawaii Kai) is the largest of ...

. It is northeast of

Hanauma Bay Hanauma (; ) is a marine embayment formed within a tuff ring and located along the southeast coast of the Island of Oahu in the Hawaii Kai neighborhood of East Honolulu, in the Hawaiian Islands. Hanauma is one of the most popular tourist destina ...

and south of the

Koʻolau Range Koolau Range is a name given to the dormant fragmented remnant of the eastern or windward shield volcano of the Hawaiian island of Oahu. It was designated a National Natural Landmark in 1972. Geology It is not a mountain range in the normal ...

Geology

Koko Crater is a part of the

Honolulu Volcanics The Honolulu Volcanics are a group of volcanoes which form a volcanic field on the island of Oʻahu, Hawaiʻi, more specifically in that island's southeastern sector and in the city of Honolulu from Pearl Harbor to the Mokapu Peninsula. It is p ...

, which were craters that formed as vents of the Koʻolau Volcano during its rejuvenation stage. Other notable landmarks within the Honolulu Volcanics include nearby Hanauma Bay and the well-known Diamond Head crater. Koko Crater, Hanauma Bay and other nearby tuff cones form the Koko Rift Zone, which marks the latest episode of volcanic activity on the island of Oahu. Radiocarbon dating suggests that the latest eruption within the Koko Rift Zone occurred 7,000 years ago, although the validity of these results are disputed. Its elevation is 1,208 ft (368 m), making it the tallest and most preserved tuff cone in the area.

Trail

During

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

, the

US military The United States Armed Forces are the Military, military forces of the United States. The armed forces consists of six Military branch, service branches: the United States Army, Army, United States Marine Corps, Marine Corps, United States N ...

built bunkers on top of Koko Crater with a railroad leading to its summit. In 1966, the air force ceded administration of Koko Crater over to the

City of Honolulu Honolulu (; ) is the Capital city, capital and largest city of the U.S. state of Hawaii, which is in the Pacific Ocean. It is an Unincorporated area, unincorporated county seat of the Consolidated city-county, consolidated City and County of H ...

. It was then renamed to the

Koko Head Regional Park Koko or KOKO may refer to: Animals *Koko (gorilla) (1971–2018), a gorilla trained to communicate in American Sign Language *Koko (dog) (2005–2012), the Australian kelpie in the 2011 film ''Red Dog'' * Koko (horse), an Irish racehorse that wo ...

. Within this park is the

Koko Crater Trail Koko or KOKO may refer to: Animals *Koko (gorilla) (1971–2018), a gorilla trained to communicate in American Sign Language *Koko (dog) (2005–2012), the Australian kelpie in the 2011 film ''Red Dog'' * Koko (horse), an Irish racehorse that wo ...

, which is a 1.8-mile-long trail that uses the now-abandoned railroad as its pathway.

References

{{Reflist Volcanoes of Oahu Tuff cones Geography of Honolulu County, Hawaii

Geology

Trail

See also

References