'u.kə/) is an ancient subdivision (ahupuaʻa) in the Hilo District of the Big Island of Hawaiʻi, located mauka (mountain-side) of the Waiākea ahupua'a; its location is on the lower flanks of the volcano Mauna Loa.Many ahupua'a have this -uka appellation, as the directions 'mountain-side' and 'sea-side' (makai) are the two best ways of orientating something in space on any of the islands.Waiākea-Uka marks the most mauka portion of human settlement in the Hilo district.The most recent lava flows were in 1935, 1942 and 1984, with the 1984 coming quite close to the upper reaches of the area.The area also highlights a variety of traditional stone/rock wall and palm grove cutting techniques; many homes have kept these walls up and a variety of linearly-cut coconut palm groves can be seen as home line designations.
Sunset behind Mauna Kea from Hoaka Road in Waiakea-Uka.