Granby Field, Newton County, Missouri, USAi

Regional Level Types
Granby Field	Mining Field
Newton County	County
Missouri	State
USA	Country

Granby Field, Tri-State Mining District, USA

According to Arthur Winslow (1894): "The mines about Granby, as already stated, have been worked for nearly 40 years, and have been large producers. They were described briefly by Swallow in his Pacific railway report of 1858, and received full examination in 1872 and 1873 by the State Geological Survey. Mining was very active here about that time, and the whole country immediately about the town was honeycombed with diggings. An idea of the density of mining at that period may be gathered from the preceding cut, reproduced from a map accompanying the Survey report of 1873. It shows all shafts which had been open up to that time within the area represented. Since then, many more have been sunk, and the aggregate number is now legion. The majority of these were mere shallow, open pits, and only part of them were operated at any one time. Some, however, were quite deep and operated by machinery, and, during recent years, this has been more common, as mining extended to greater depths.

Detailed figures of production of this camp, extending over many years, could not be obtained. Mr. John P. Neville, president of the company, informs us, however, that during the past 25 years the production has averaged 1250 tons of lead ore and 6250 tons of zinc ore annually."