Otira Valley, Arthur’s Pass National Park, ASBS 2010 field trip, Dec 2010. Photo by Heidi Meudt, © Te Papa.

Otira Valley, Arthur's Pass National Park, ASBS 2010 field trip, Dec 2010. Photo by Heidi Meudt, © Te Papa.

Otira Valley, Arthur’s Pass National Park, ASBS 2010 field trip, Dec 2010. Photo by Heidi Meudt, © Te Papa.Read more

Otira Valley, Arthur’s Pass National Park, ASBS 2010 field trip, Dec 2010. Photo by Heidi Meudt, © Te Papa.