| Lake Rotongaro | |
| Pushpin Map: | North Island |
| Pushpin Map Alt: | Location of Lake Rotongaro |
| Location: | North Island |
| Coords: | -37.4833°N 175.1167°W |
| Type: | riverine |
| Outflow: | Rotongaro Canal |
| Catchment: | 19.5km2 |
| Basin Countries: | New Zealand |
| Length: | 2.5km (01.6miles) |
| Width: | 2.2km (01.4miles) |
| Area: | 292ha (open water) |
| Max-Depth: | 3.3m (10.8feet) |
Lake Rotongaro is located to the west of Ohinewai in the Waikato Region of New Zealand. It is a large shallow riverine lake, which links to the Waikato River.[1] It is situated between the Waikato River and the larger Lake Whangape.
The lake was lowered by 2.33feet in 1925, by means of a 2.75miles x 18feet canal,[2] which drains into Lake Rotongaroiti, which then flows through the Rotongaro canal, to drain into the Whangape Stream, just below Lake Whangape.[3]
The lake area is approximately 292 ha, with a max depth of 3.3 m. The catchment area is predominantly pastoral, with an estimated area of 1950 ha.[4]
In Māori, rotongaro means "hidden lake" (roto = lake, ngaro = hidden).[5]