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were laid along the length of them to carry the stones away from the working face. Nigel Mountfort (DoC, Takaka) has suggested that the most impressive of these stacked tailings (on the west side of the Flat) were the result of Red Hill Company sluicing.

Two races run round the hillside from the Greenwood Creek, which flows into the Parapara River, to the Richmond Flat tailings and a number of small feeder races run from these into the sluicings. A possible hut site was found immediately below the two water races (Site 2). This was a flattened area on the hillside with a rusty iron pot and a broken case gin bottle lying on the ground.

Plate II: Close -up of the dam crest from true right.

Plate III: View of standing steel pipe looking upstream.

The exact course of the diversion channel that runs from the Parapara River to the tunnel could not be relocated. The tunnel entrance is no longer visible either. Richard Lamb has located what is likely to have been the route of the channel, or the collapsed tunnel, based on depressions in the ground that would be consistent with such a channel. These depressions align with a 10m long water-filled channel (approximately 2.5m wide and 500mm deep) aligned directly towards the closest point on the Parapara River. There is also a shallow remnant channel at the eastern end of the wetland adjacent to the river on the flat. A point along the channel was recorded (Site 3), as was the approximate intake point for the diversion channel (Site 4). This is a small ‘inlet’ in the true left bank of the Parapara River a short distance upstream from the dam.

The dam stands at the upper end of a gorge on the Parapara River (Plates II and III, Site 5). The construction of the dam is unusual in that the bottom two-thirds of the structure are concrete and the top third is concrete and large river cobbles. Water still flows through the two diversion pipes at the base of the dam described above, but only one of the steel pipes that held the lifting gear remains standing. One of the pipes is visible lying in the water behind the dam and it is likely that the last pipe has also fallen into the river. The dam is in very good condition, except on the true left side of the river where a section of the dam crest has broken away. This section is approximately 3m long, 1m wide and 50cm deep.

Katharine Watson Archaeology July 2003     Page 7

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