GHD | Oceana Gold New Zealand Ltd. | 12552081 | Waihi North Project G-4 Topographic data Topographic data from various sources was examined as part of the model build process. Available information includes: 1. 20 m interval contours from LINZ for the entire catchment 2. 2010 LiDAR from Waikato Regional Council along the main river channel 3. Surveyed river cross section data from Engineering Geology Limited for the downstream sections of the Ohinemuri River. Figure 4 illustrates the extent of LiDAR and survey information, as well as the catchment boundaries as identified from LINZ contour information. Figure 4 Extent of LiDAR and Survey Information
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