Wikipedia
Karioi
Karioi or Mount Karioi is a 2.4 million year old extinct volcano 8 km SW of Raglan in the Waikato region of New Zealand's North Island. It was the earliest of the line of 4 volcanoes, the largest of which is Mount Pirongia (the others are Kakepuku and Te Kawa). Karioi forms a background to many parts of Raglan.
Karioi was also a Highway Board area around the maunga from 1870 to 1889, when it was absorbed (with Whaingaroa Board area and formed into Karioi Riding) into Raglan County Council. In 1876 it had a population of 112 in 27 houses and in 1889 119 ratepayers, 80 of them absentees.
Karioi is also a location on the Central Plateau (see articles on Mangamahu, North Island Main Trunk, Raetihi, Waiouru).