Lake Rotomahana

Lake Rotomahana
Image showing a still Lake Rotomahana on an overcast day framed by trees. Mount Tarawera is visible in the background
Lake Rotomahana in 2011
Location of Lake Rotomahana
Location of Lake Rotomahana
Lake Rotomahana
Bathymetric map of Lake Rotomahana
Bathymetric map of Lake Rotomahana[1]
LocationNorth Island
GroupRotorua lakes
Coordinates38°16′S 176°27′E / 38.267°S 176.450°E / -38.267; 176.450
Lake typeVolcanic crater lake
EtymologyFrom Māori: Hot lake
Part ofŌkataina Caldera
Primary inflowsHaumi Stream, Te Kauae Stream, Waimangu Stream, unnamed streams on Mount Tarawera, subsurface
Primary outflowssubsurface of at least 1,125 L/s (39.7 cu ft/s).[2]
Catchment area83.3 km2 (32.2 sq mi)[2]: 56 
Basin countriesNew Zealand
First flooded1886
Max. length6.2 km (3.9 mi)[3]
Max. width2.8 km (1.7 mi)[3]
Surface area8.9 km2 (3.4 sq mi)[2]: 55 
Average depth51 m (167 ft)[3]
Max. depth118 m (387 ft),[4]: 41 
Surface elevation338.7 m (1,111 ft)[2]: 24 
IslandsPātītī Island
References[3]

Lake Rotomahana is an 890-hectare (2,200-acre)[2]: 55  lake in northern New Zealand, located 20 kilometres to the south-east of Rotorua. It is immediately south-west of the dormant volcano Mount Tarawera, and its geography was substantially altered by a major 1886 eruption of Mount Tarawera. Along with the mountain, it lies within the Ōkataina Caldera. It is the most recently formed larger natural lake in New Zealand, and the deepest in the Rotorua district.

  1. ^ de Ronde, Cornel E. J.; Caratori Tontini, Fabio; Walker, S. L.; Black, Jenny (2020). "Bathymetric map of Lake Rotomahana". GNS Science Rotorua Lakes Map Series. doi:10.21420/E4FK-8P15. Retrieved 31 August 2023.
  2. ^ a b c d e Cite error: The named reference White2016 was invoked but never defined (see the help page).
  3. ^ a b c d Lowe, D.J.; Green, J.D. (1987). Viner, A.B. (ed.). Inland waters of New Zealand. Wellington: DSIR Science Information Publishing Centre. pp. 471–474. ISBN 978-0-477-06799-7.
  4. ^ Cite error: The named reference Ronde2018 was invoked but never defined (see the help page).