| Mauna Kea Ice Age Reserve | |
|---|---|
 Terminal moraines (m) and glacial till (w) | |
 | |
| Location | Island of Hawaiʻi |
| Nearest city | Hilo, Hawaiʻi |
| Area | 3,894 acres (1,576 ha) |
| Established | 1981 |
| Governing body | State Reserve |
The Mauna Kea Ice Age Natural Area Reserve is a Hawaii state natural reserve that includes the Mauna Kea Adz Quarry, on the southern slope of Mauna Kea on the island of the Hawaiʻi.