Sumpter Valley Gold Dredge - Wikipedia
2019-11-2Sumpter No. 3 was built substantially from parts of the first dredge, which had been idle for 10 years. Between them, the dredges traveled more than 8 miles 13 km, extracting 10 to 12 million worth of gold. Still, it cost more to run than the gold could pay for. The last dredge closed in 1954, more than 100,000 in debt.