These sediments – mainly breccias and conglomerates were deposited during a period when Zealandia was still separating from Gondwana.  During this time, faulting within the basement rock created graben-like features.  Braided rivers draining what is now modern day inland Otago reworked and eroded exposed basement rock, depositing the resulting sediments in thick masses.  These deposits are called the Horse Range Formation. Today these deposits are exposed in huge cliffs in Trotters Gorge.

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To learn more: Initiation of the Fault zones on the Northeast Otago Margin 

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Grab the hiking boots and enjoy the views at Trotters Gorge! Take one of the 3 DOC tracks at Trotters Gorge and listen to many of New Zealand’s bush birds such as the karearea/NZ falcon. Also, look out for native fish (galaxiids) in the streams. A small uphill path will be rewarded with amazing views from mountains to the sea!

Please be aware the following hazards include: the tracks are mostly well formed, but some sections may be steep, rough or muddy, open water (creek)