Groundwater boreholes are represented by point data with each point having attributes describing location, depth and water levels, if known. Additional attribution characterising aquifer type has been added to the original data for the purposes of this project. The data layer is part of the 'Geology of the Middlemarch area' 1:50 000 dataset covering a part of of East Otago around Middlemarch township.

This layer represents quarries and escarpments and is based on LINZ Topo50 data modified using aerial photography and fieldwork.

This collection of datasets comprises the 'Geology of the Hyde-Macraes Shear Zone and Waihemo Fault Zone area' 1:50 000 compilation of geological data covering a part of of East Otago and extending off shore to the Karitane Canyon.

The 'Geology of the Hyde-Macraes Shear Zone and Waihemo Fault Zone area' is a 1:50 000 scale map covering a part of East Otago and extending off shore to the Karitane Canyon. This dataset spatially represents sediment depth, shown at 100 metres intervals, on geological basement in the offshore area encompassed by this map.

Annotation in this layer contains age information for point features in NZL_GNS_GM5_geochronology_50k. The data layer is part of the 'Geology of the Middlemarch area' 1:50 000 dataset covering a part of of East Otago around Middlemarch township.

The 'Geology of the Hyde-Macraes Shear Zone and Waihemo Fault Zone area' is a 1:50 000 scale map covering a part of East Otago and extending off shore to the Karitane Canyon. This dataset spatially represents selected horizon data for the area encompassed by this map.

Areas of similar magnetic character are identified by polygon features and described in terms of relative frequency and amplitude. This data layer contains interpretation of the total magnetic intensity reduced to pole aeromagnetic data from the Glass Earth geophysical survey undertaken in 2007. The data layer is part of the 'Geology of the Middlemarch area' 1:50 000 dataset covering a part of East Otago around Middlemarch township.

The 'Geology of the Hyde-Macraes Shear Zone and Waihemo Fault Zone area' is a 1:50 000 scale map covering a part of East Otago and extending off shore to the Karitane Canyon. This dataset spatially represents selected isobaths of water depth interpreted from various data for the offshore area encompassed by this map.

This georeferenced raster image represents electromagnetic data for the Middlemarch area depicting apparent resistivity at 8200 Hz. The data is part of a geophysical survey undertaken for Glass Earth NZ Ltd. in 2007. The data layer is part of the 'Geology of the Middlemarch area' 1:50 000 dataset covering a part of East Otago around Middlemarch township.

This georeferenced raster image represents aeromagnetic data for the Middlemarch area depicting total magnetic intensity, reduced to pole, upwards continued to 750 metres. The data is part of a geophysical survey undertaken for Glass Earth NZ Ltd. in 2007. The data layer is part of the 'Geology of the Middlemarch area' 1:50 000 dataset covering a part of East Otago around Middlemarch township.