C—2

DREDGE MINING In the Southern District the Clutha River dredge continued work throughout the year at Alexandra Flat, and the Austral-New Zealand dredge worked continuously in the Clutha River Flats upstream from the Lowburn Bridge. The Molyneux dredge has not worked during the year, while the Rainbow Dredging Syndicate's dredge, after being idle during most of 1948 due to exhaustion of the available dredging area, has now been shifted to the Charlton Valley dredging area near Gore, and will resume operations early in 1949. In the West Coast District nine dredges worked throughout 1948. The reconstruction of the Premier Co.'s dredge is proceeding on the company's special dredging claim on Big River, adjoining the Blackwater section of the Grey River Dredging Co.'s claim. This dredge was formerly on the property of the Nemona Co., and was transferred during the year from New River. The Maori gold dredge, Callaghan's, after an unsuccessful period of work in the previous year, did not resume in 1948.

Men Employed and Output

PRODUCTION OF METALS (OTHER THAN GOLD OR SILVER)

32

— Yardage. Depth. Men Employed. Gold. Silver. Value. West Coast District— Cu. yds. Ft. Oz. Oz. £ Grey River, Ikamatua 3,495,647 29-5 27 7,323 72 65,669 Arahura, Arahura 2,863,000 119-0 39 9,484 187 89,194 Rimu, Rimu 1,408,780 31-8 39 4,229 31,759 Kaniere, Kaniere 2,670,000 58-9 38 7,502 145 68,964 Ngahere, Ngahere 1,994,796 78-0 25 5,850 12 52,958 Snowy River, Ikamatua 950,000 16-0 13 3,639 35,213 Atarau, Atarau 1,338,588 21-3 12 2,317 21,927 Marsden, Marsden 563,086 340 12 536 5,445 Slab Hut, Ikamatua .. 121,400 15-0 10 161 1,640 Totals 15,405,297 215 41,041 416 372,769 Southern District— Austral-New Zealand, Lowburn 3,154,000 48-0 50 7,974 282 77,948 Clutha, Alexandra 2,278,000 74-0 24 5,629 52,634 Totals 5,432,000 74 13,603 282 130,582

Location. Men Employed. Quantity. Ore Treated. Value. • Tons. Tons. £ Tungsten-ore Glenorchy, Macrae's 23 24-3 458 9,800 Copper None mined during year. Iron Onekaka 7 317-0 238 Okaihau 10 2,896-0 8,050 Kamo 3 1,563-0 1,775 Arsenic Blackwater Mine, Waiuta 8-0 144 AntimonyXenthorne, Otago 2 8-5 248 Manganese .. Otau, Olevedon 1 170-0 850