Parker Ranch

During World War II, part of the ranch was used as a United States Marine Corps training base called Camp Tarawa.

The Mauna Kea Beach Hotel, was developed and constructed by Laurance S. Rockefeller, on land purchased from Parker Ranch.

[3] Following a successful grass-fed beef trial on Hawaii Island, Parker Ranch and Ulupono Initiative announced the launch of the Paniolo Cattle Company, a joint venture aimed at statewide local beef production in March 2014.

According to president and CEO Dutch Kuyper, due to the COVID-19 pandemic Parker Ranch canceled their annual 4 July rodeo in 2020.

Two of the ranch's historic homes, Puuopelu and Mana Hale, are open for free self guided tours at 66-1304 Mamalahoa Highway about one mile outside of Waimea town.