Paddys Rock Ephemeral Tarn


A low turf ephemeral tarn on a broad ridge crest within the Rolling Hills land system. 1


Marsh. 2


0.7 ha.


580 - 600 m above sea level.

Approximate location:

9 km Northwest of the intersection of Ramrock Road and Townsend Road, Nenthorn.
NZTM (centre point): E1395480 N4956030.

Regional Plan:

Water for Otago.
Schedule 9 Regionally Significant Wetland, no.119, Map F59.

Territorial Authority:

Waitaki District Council.


Paddys Rock Ephemeral Tarn

Recorded Values:




Habitat for nationally or internationally rare or threatened species or communities. Presence of threatened plant Tetrachondra hamiltonii on margin of tarn. 1


Scarce in Otago in terms of its ecological or physical character. Less than 15% of marshes remain in Otago. 2


High diversity of indigenous wetland flora and fauna. High plant diversity. The tarn contains the native herb Hypsela rivalis, Carex gaudichaudiana and club rush (Eleocharis acuta). 1

A2 - A4, A6, A8, A9

No relevant information is currently held by the ORC.


Other Information:

  • Composition of Juncus sp. 2
  • Listed in the Schedule of Areas of Significant Nature Conservation Value and Geopreservation Sites in the Waitaki District Plan. 12



1 Otago Regional Council (2004) Regional Plan: Water for Otago. Published by the Otago Regional Council, Dunedin.

2 Ausseil, A.G., Newsome, P., Johnson, P. (2008) Wetland Mapping in the Otago Region. Landcare Research Contract Report prepared for the Otago Regional Council.

94 Department of Conservation – Photo Archive.

Aerial View of Paddys Rock Ephemeral Tarn (March 2005)

Aerial View of Paddys Rock Ephemeral Tarn (March 2005)


Paddys Rock Ephemeral Tarn (April 2011)

Paddys Rock Ephemeral Tarn (April 2011) 94


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